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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NetIncomeLoss" xml:lang="en-US">Net income (loss)</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_IncomeTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxExpenseBenefit" xml:lang="en-US">Income Tax Expense (Benefit)</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IncomeTaxExpenseBenefit" xml:lang="en-US">Total income tax expense</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_NonoperatingIncomeExpense" xml:lang="en-US">Total other expense</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherNonoperatingIncomeExpense" xml:lang="en-US">Other income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="lab_GainsLossesOnExtinguishmentOfDebt" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Gains (Losses) on Extinguishment of Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Loss on extinguishment of debt and credit facilities, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Aggregate loss on extinguishment of notes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Gains (Losses) on Extinguishment of Debt, Total</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_InterestExpense" xml:lang="en-US">Interest expense, net of amounts capitalized</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_InterestExpense" xml:lang="en-US">Interest Expense, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestExpense" xml:lang="en-US">Interest costs charged to expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OperatingIncomeLoss" xml:lang="en-US">Operating Income (Loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_OperatingIncomeLoss" xml:lang="en-US">Income from operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OperatingIncomeLoss" xml:lang="en-US">Income from operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OperatingIncomeLoss" xml:lang="en-US">Income from operations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="us-gaap_DepreciationAndAmortization" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortization" xlink:to="lab_DepreciationAndAmortization" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DepreciationAndAmortization" xml:lang="en-US">Depreciation, Depletion and Amortization, Nonproduction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DepreciationAndAmortization" xml:lang="en-US">Depreciation and amortization expense on property and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DepreciationAndAmortization" xml:lang="en-US">Depreciation, Depletion and Amortization, Nonproduction, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DepreciationAndAmortization" xml:lang="en-US">Depreciation and amortization</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TechnologyServicesCosts" xlink:label="us-gaap_TechnologyServicesCosts" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_TechnologyServicesCosts" xml:lang="en-US">Engineering, design and development</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SellingAndMarketingExpense" xml:lang="en-US">Sales and marketing</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_SellingAndMarketingExpense" xml:lang="en-US">Selling and Marketing Expense, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SellingAndMarketingExpense" xml:lang="en-US">Selling and Marketing Expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherSalesRevenueNet" xlink:label="us-gaap_OtherSalesRevenueNet" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherSalesRevenueNet" xml:lang="en-US">Other revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdvertisingRevenue" xlink:label="us-gaap_AdvertisingRevenue" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_SubscriptionRevenue" xml:lang="en-US">Total subscriber revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="us-gaap_RevenuesAbstract" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeStatementAbstract" xml:lang="en-US">Consolidated Statement of Operations [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeStatementAbstract" xml:lang="en-US">Statement of Operations</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_Assets" xml:lang="en-US">Total assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_Assets" xml:lang="en-US">Assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherAssetsNoncurrent" xml:lang="en-US">Other Assets, Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherAssetsNoncurrent" xml:lang="en-US">Other long-term assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DueFromRelatedPartiesNoncurrent" xlink:label="us-gaap_DueFromRelatedPartiesNoncurrent" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DueFromRelatedPartiesNoncurrent" xml:lang="en-US">Related party long-term assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DueFromRelatedPartiesNoncurrent" xml:lang="en-US">Due from Related Parties, Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DueFromRelatedPartiesNoncurrent" xml:lang="en-US">Deferred financing costs with Liberty Media to Related party long-term assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DueFromRelatedPartiesNoncurrent" xml:lang="en-US">Due from Related Parties, Noncurrent, Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Goodwill" xlink:label="us-gaap_Goodwill" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Goodwill" xlink:to="lab_Goodwill" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_Goodwill" xml:lang="en-US">Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_Goodwill" xml:lang="en-US">Goodwill, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_Goodwill" xml:lang="en-US">Goodwill, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_Goodwill" xml:lang="en-US">Goodwill</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill" />
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNoncurrentNet" xlink:to="lab_DeferredFinanceCostsNoncurrentNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredFinanceCostsNoncurrentNet" xml:lang="en-US">Deferred financing fees, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredFinanceCostsNoncurrentNet" xml:lang="en-US">Deferred Finance Costs, Noncurrent, Net, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredFinanceCostsNoncurrentNet" xml:lang="en-US">Deferred Finance Costs, Noncurrent, Net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestrictedInvestmentsNoncurrent" xlink:label="us-gaap_RestrictedInvestmentsNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedInvestmentsNoncurrent" xlink:to="lab_RestrictedInvestmentsNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RestrictedInvestmentsNoncurrent" xml:lang="en-US">Restricted Investments, Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_RestrictedInvestmentsNoncurrent" xml:lang="en-US">Restricted investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RestrictedInvestmentsNoncurrent" xml:lang="en-US">Long-term restricted investments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_PropertyPlantAndEquipmentNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property and equipment, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property and equipment, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="lab_AssetsCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AssetsCurrent" xml:lang="en-US">Assets, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AssetsCurrent" xml:lang="en-US">Total current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="us-gaap_OtherAssetsCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsCurrent" xlink:to="lab_OtherAssetsCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherAssetsCurrent" xml:lang="en-US">Other Assets, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherAssetsCurrent" xml:lang="en-US">Other current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="us-gaap_PrepaidExpenseCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseCurrent" xlink:to="lab_PrepaidExpenseCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PrepaidExpenseCurrent" xml:lang="en-US">Prepaid expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PrepaidExpenseCurrent" xml:lang="en-US">Prepaid Expense, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PrepaidExpenseCurrent" xml:lang="en-US">Prepaid Expense, Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryNet" xlink:label="us-gaap_InventoryNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="lab_InventoryNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryNet" xml:lang="en-US">Inventory, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_InventoryNet" xml:lang="en-US">Total inventory, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InventoryNet" xml:lang="en-US">Inventory, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="us-gaap_DueFromRelatedPartiesCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueFromRelatedPartiesCurrent" xlink:to="lab_DueFromRelatedPartiesCurrent" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="us-gaap_AccountsReceivableNetCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="lab_AccountsReceivableNetCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountsReceivableNetCurrent" xml:lang="en-US">Accounts Receivable, Net, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_AccountsReceivableNetCurrent" xml:lang="en-US">Total accounts receivable, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AccountsReceivableNetCurrent" xml:lang="en-US">Total accounts receivable, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccountsReceivableNetCurrent" xml:lang="en-US">Accounts receivable, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="lab_CashAndCashEquivalentsAtCarryingValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents at beginning of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents at end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="lab_AssetsCurrentAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AssetsCurrentAbstract" xml:lang="en-US">Current assets:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AssetsCurrentAbstract" xml:lang="en-US">Assets, Current [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="us-gaap_AssetsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsAbstract" xlink:to="lab_AssetsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AssetsAbstract" xml:lang="en-US">ASSETS</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AssetsAbstract" xml:lang="en-US">Assets [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_LiabilitiesAndStockholdersEquityAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">Liabilities and Stockholders' Equity [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS' EQUITY</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="lab_PreferredStockValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockValue" xml:lang="en-US">Preferred Stock, Value, Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_PreferredStockValue" xml:lang="en-US">Preferred Stock, Value, Issued, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_PreferredStockValue" xml:lang="en-US">Preferred Stock, Value, Issued, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PreferredStockValue" xml:lang="en-US">Preferred Stock, Value, Issued, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PreferredStockValue" xml:lang="en-US">Preferred stock, par value $0.001; 50,000,000 authorized at December 31, 2011 and 2010 Series A convertible preferred stock ; no shares issued and outstanding at December 31, 2011 and December 31, 2010</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="us-gaap_SeriesAPreferredStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeriesAPreferredStockMember" xlink:to="lab_SeriesAPreferredStockMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SeriesAPreferredStockMember" xml:lang="en-US">Series A Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SeriesAPreferredStockMember" xml:lang="en-US">Series A Convertible Preferred Stock</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="us-gaap_SeriesBPreferredStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeriesBPreferredStockMember" xlink:to="lab_SeriesBPreferredStockMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SeriesBPreferredStockMember" xml:lang="en-US">Series B Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SeriesBPreferredStockMember" xml:lang="en-US">Convertible Perpetual Preferred Stock, Series B-1</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SeriesCPreferredStockMember" xlink:label="us-gaap_SeriesCPreferredStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeriesCPreferredStockMember" xlink:to="lab_SeriesCPreferredStockMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SeriesCPreferredStockMember" xml:lang="en-US">Series C Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SeriesCPreferredStockMember" xml:lang="en-US">Preferred Stock, Series C Junior</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="lab_CommonStockValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Class A Shares received</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common stock, par value $0.001; 9,000,000,000 shares authorized at December 31, 2011 and 2010; 3,753,201,929 and 3,933,195,112 shares issued and outstanding at December 31, 2011 and 2010, respectively</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated other comprehensive income (loss), net of tax</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="us-gaap_AdditionalPaidInCapital" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapital" xlink:to="lab_AdditionalPaidInCapital" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdditionalPaidInCapital" xml:lang="en-US">Additional paid-in capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AdditionalPaidInCapital" xml:lang="en-US">Additional Paid in Capital, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_AdditionalPaidInCapital" xml:lang="en-US">Additional Paid in Capital, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_AdditionalPaidInCapital" xml:lang="en-US">Additional Paid in Capital, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdditionalPaidInCapital" xml:lang="en-US">Additional Paid in Capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_RetainedEarningsAccumulatedDeficit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Retained Earnings (Accumulated Deficit), Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Retained Earnings (Accumulated Deficit), Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Accumulated deficit</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="lab_StockholdersEquity" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_StockholdersEquity" xml:lang="en-US">Ending Balance</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredRevenueCurrent" xml:lang="en-US">Current portion of deferred revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredRevenueCurrent" xml:lang="en-US">Deferred Revenue, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredRevenueCurrent" xml:lang="en-US">Deferred Revenue, Current</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueToRelatedPartiesCurrent" xlink:to="lab_DueToRelatedPartiesCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DueToRelatedPartiesCurrent" xml:lang="en-US">Due to Related Parties, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DueToRelatedPartiesCurrent" xml:lang="en-US">Related party current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="lab_LiabilitiesCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LiabilitiesCurrent" xml:lang="en-US">Liabilities, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_LiabilitiesCurrent" xml:lang="en-US">Total current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredRevenueNoncurrent" xlink:label="us-gaap_DeferredRevenueNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueNoncurrent" xlink:to="lab_DeferredRevenueNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredRevenueNoncurrent" xml:lang="en-US">Deferred Revenue, Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DeferredRevenueNoncurrent" xml:lang="en-US">Carrying value of deferred revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredRevenueNoncurrent" xml:lang="en-US">Deferred Revenue, Noncurrent, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredRevenueNoncurrent" xml:lang="en-US">Deferred revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="us-gaap_DeferredTaxLiabilitiesNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:to="lab_DeferredTaxLiabilitiesNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxLiabilitiesNoncurrent" xml:lang="en-US">Deferred tax liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxLiabilitiesNoncurrent" xml:lang="en-US">Deferred Tax Liabilities, Noncurrent</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueToRelatedPartiesNoncurrent" xlink:to="lab_DueToRelatedPartiesNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DueToRelatedPartiesNoncurrent" xml:lang="en-US">Related party long-term liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DueToRelatedPartiesNoncurrent" xml:lang="en-US">Due to Related Parties, Noncurrent, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DueToRelatedPartiesNoncurrent" xml:lang="en-US">Due to Related Parties, Noncurrent</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="lab_OtherLiabilitiesNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherLiabilitiesNoncurrent" xml:lang="en-US">Other Liabilities, Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherLiabilitiesNoncurrent" xml:lang="en-US">Other long-term liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="lab_Liabilities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_Liabilities" xml:lang="en-US">Total liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_Liabilities" xml:lang="en-US">Liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="lab_PreferredStockParOrStatedValuePerShare" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockParOrStatedValuePerShare" xml:lang="en-US">Preferred Stock, Par or Stated Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PreferredStockParOrStatedValuePerShare" xml:lang="en-US">Preferred stock, par value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="lab_PreferredStockSharesAuthorized" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="us-gaap_PreferredStockSharesIssued" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="lab_PreferredStockSharesIssued" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockSharesIssued" xml:lang="en-US">Preferred Stock, Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PreferredStockSharesIssued" xml:lang="en-US">Issuance of Convertible Perpetual Preferred Stock</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="lab_PreferredStockSharesOutstanding" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred Stock, Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred Stock, Shares Outstanding, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred Stock, Shares Outstanding, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_PreferredStockSharesOutstanding" xml:lang="en-US">Series-A convertible preferred stock outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred stock, shares outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_CommonStockParOrStatedValuePerShare" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockParOrStatedValuePerShare" xml:lang="en-US">Common stock, par value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockParOrStatedValuePerShare" xml:lang="en-US">Common Stock, Par or Stated Value Per Share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="lab_CommonStockSharesAuthorized" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockSharesAuthorized" xml:lang="en-US">Common Stock, Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockSharesAuthorized" xml:lang="en-US">Common stock, shares authorized</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="us-gaap_CommonStockSharesIssued" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="lab_CommonStockSharesIssued" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockSharesIssued" xml:lang="en-US">Common stock, shares issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CommonStockSharesIssued" xml:lang="en-US">Common Stock, Shares, Issued, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockSharesIssued" xml:lang="en-US">Common Stock, Shares, Issued</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="lab_CommonStockSharesOutstanding" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockSharesOutstanding" xml:lang="en-US">Common stock, shares outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_CommonStockSharesOutstanding" xml:lang="en-US">Common Stock, Shares, Outstanding, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_CommonStockSharesOutstanding" xml:lang="en-US">Common Stock, Shares, Outstanding, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockSharesOutstanding" xml:lang="en-US">Common Stock, Shares, Outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="lab_AccountingPoliciesAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountingPoliciesAbstract" xml:lang="en-US">Summary of Significant Accounting Policies [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="lab_SignificantAccountingPoliciesTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SignificantAccountingPoliciesTextBlock" xml:lang="en-US">Summary of Significant Accounting Policies</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SignificantAccountingPoliciesTextBlock" xml:lang="en-US">Significant Accounting Policies [Text Block]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IntangibleAssetsDisclosureTextBlock" xml:lang="en-US">Intangible Assets Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IntangibleAssetsDisclosureTextBlock" xml:lang="en-US">Intangible Assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="lab_PropertyPlantAndEquipmentAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentAbstract" xml:lang="en-US">Property and Equipment [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="lab_PropertyPlantAndEquipmentTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US">Property, Plant and Equipment [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US">Estimated useful lives of Property and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US">Property and equipment, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommitmentsAndContingenciesDisclosureTextBlock" xml:lang="en-US">Commitments and Contingencies</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommitmentsAndContingenciesDisclosureTextBlock" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="us-gaap_DebtDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureTextBlock" xlink:to="lab_DebtDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtDisclosureTextBlock" xml:lang="en-US">Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtDisclosureTextBlock" xml:lang="en-US">Debt Disclosure [Text Block]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_RelatedPartyTransactionsDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RelatedPartyTransactionsDisclosureTextBlock" xml:lang="en-US">Related Party Transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionsDisclosureTextBlock" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="lab_StockholdersEquityNoteDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockholdersEquityNoteDisclosureTextBlock" xml:lang="en-US">Stockholders' Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockholdersEquityNoteDisclosureTextBlock" xml:lang="en-US">Stockholders' Equity Note Disclosure [Text Block]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SubscriberRevenueAbstract" xlink:label="siri_SubscriberRevenueAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubscriberRevenueAbstract" xlink:to="siri_SubscriberRevenueAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubscriberRevenueAbstract_lbl" xml:lang="en-US">Subscriber Revenue [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberRevenueAbstract_lbl" xml:lang="en-US">Subscriber Revenue.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="lab_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xml:lang="en-US">Benefits Plans</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_StatementOfCashFlowsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementOfCashFlowsAbstract" xml:lang="en-US">Consolidated Statements of Cash Flows [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="lab_SupplementalCashFlowInformationAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SupplementalCashFlowInformationAbstract" xml:lang="en-US">Supplemental Disclosure of Cash and Non-Cash Flow Information</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SupplementalCashFlowInformationAbstract" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract" xlink:label="us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract" xlink:to="lab_OtherNoncashInvestingAndFinancingItemsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherNoncashInvestingAndFinancingItemsAbstract" xml:lang="en-US">Other Noncash Investing and Financing Items [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherNoncashInvestingAndFinancingItemsAbstract" xml:lang="en-US">Non-cash investing and financing activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="lab_InterestPaidNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestPaidNet" xml:lang="en-US">Interest, net of amounts capitalized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_InterestPaidNet" xml:lang="en-US">Interest Paid, Net, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InterestPaidNet" xml:lang="en-US">Interest Paid, Net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Cash flows from operating activities:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_NetCashProvidedByUsedInOperatingActivities" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="lab_IncreaseDecreaseInDeferredRevenue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInDeferredRevenue" xml:lang="en-US">Deferred revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInDeferredRevenue" xml:lang="en-US">Increase (Decrease) in Deferred Revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="lab_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Accounts payable and accrued expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Increase (Decrease) in Accounts Payable and Accrued Liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="lab_IncreaseDecreaseInOtherOperatingAssets" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Increase (Decrease) in Other Operating Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Other long-term assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Other long-term assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="lab_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US">Increase (Decrease) in Prepaid, Deferred Expense and Other Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US">Prepaid expenses and other current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US">Increase (Decrease) in Prepaid, Deferred Expense and Other Assets, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US">Prepaid expenses and other current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="us-gaap_IncreaseDecreaseInInventories" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInventories" xlink:to="lab_IncreaseDecreaseInInventories" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInInventories" xml:lang="en-US">Increase (Decrease) in Inventories</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_IncreaseDecreaseInInventories" xml:lang="en-US">Inventory</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IncreaseDecreaseInInventories" xml:lang="en-US">Increase (Decrease) in Inventories, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInInventories" xml:lang="en-US">Inventory</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="lab_IncreaseDecreaseInAccountsReceivable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInAccountsReceivable" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_IncreaseDecreaseInAccountsReceivable" xml:lang="en-US">Accounts receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInAccountsReceivable" xml:lang="en-US">Accounts receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_IncreaseDecreaseInOperatingCapitalAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US">Changes in operating assets and liabilities:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="lab_DeferredIncomeTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Total deferred taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred income taxes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="us-gaap_ProvisionForDoubtfulAccounts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProvisionForDoubtfulAccounts" xlink:to="lab_ProvisionForDoubtfulAccounts" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProvisionForDoubtfulAccounts" xml:lang="en-US">Provision for doubtful accounts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProvisionForDoubtfulAccounts" xml:lang="en-US">Provision for Doubtful Accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="us-gaap_DepreciationDepletionAndAmortization" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationDepletionAndAmortization" xlink:to="lab_DepreciationDepletionAndAmortization" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DepreciationDepletionAndAmortization" xml:lang="en-US">Depreciation and amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DepreciationDepletionAndAmortization" xml:lang="en-US">Depreciation, Depletion and Amortization, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DepreciationDepletionAndAmortization" xml:lang="en-US">Depreciation, Depletion and Amortization</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="lab_NetCashProvidedByUsedInInvestingActivitiesAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NetCashProvidedByUsedInInvestingActivitiesAbstract" xml:lang="en-US">Cash flows from investing activities:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetCashProvidedByUsedInInvestingActivitiesAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_PaymentsToAcquirePropertyPlantAndEquipment" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Additions to property and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Additions to property and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="lab_NetCashProvidedByUsedInInvestingActivities" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net cash used in financing activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="us-gaap_RepaymentsOfLongTermDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="lab_RepaymentsOfLongTermDebt" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayments of Long-term Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayment of long-term borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_RepaymentsOfLongTermDebt" xml:lang="en-US">Outstanding notes purchased</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayment of long-term borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromRelatedPartyDebt" xlink:to="lab_ProceedsFromRelatedPartyDebt" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromRelatedPartyDebt" xml:lang="en-US">Proceeds from Related Party Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromRelatedPartyDebt" xml:lang="en-US">Related party long-term borrowings, net of costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:to="lab_ProceedsFromIssuanceOfLongTermDebt" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Proceeds from Issuance of Long-term Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Proceeds from issuance of debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Proceeds from Issuance of Long-term Debt, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Long-term borrowings, net of costs</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AccumulatedDeficitMember" xlink:label="siri_AccumulatedDeficitMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AccumulatedDeficitMember" xlink:to="siri_AccumulatedDeficitMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AccumulatedDeficitMember_lbl" xml:lang="en-US">Accumulated Deficit [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AccumulatedDeficitMember_lbl" xml:lang="en-US">Accumulated Deficit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AccumulatedDeficitMember_lbl" xml:lang="en-US">Accumulated Deficit.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SharesIssued" xlink:label="us-gaap_SharesIssued" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssued" xlink:to="lab_SharesIssued" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_SharesIssued" xml:lang="en-US">Beginning Balance, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_SharesIssued" xml:lang="en-US">Ending Balance, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SharesIssued" xml:lang="en-US">Shares, Issued</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTaxAbstract" xlink:label="us-gaap_OtherComprehensiveIncomeLossTaxAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossTaxAbstract" xlink:to="lab_OtherComprehensiveIncomeLossTaxAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherComprehensiveIncomeLossTaxAbstract" xml:lang="en-US">Other Comprehensive Income (Loss), Tax [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherComprehensiveIncomeLossTaxAbstract" xml:lang="en-US">Other comprehensive loss:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="lab_StatementOfFinancialPositionAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementOfFinancialPositionAbstract" xml:lang="en-US">Consolidated Balance Sheets [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StatementOfFinancialPositionAbstract" xml:lang="en-US">Balance Sheets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_TechnologyServicesCosts" xml:lang="en-US">Engineering, design and development</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="lab_LiabilitiesCurrentAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LiabilitiesCurrentAbstract" xml:lang="en-US">Current liabilities:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LiabilitiesCurrentAbstract" xml:lang="en-US">Liabilities, Current [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="lab_CashAndCashEquivalentsPeriodIncreaseDecrease" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Net increase cash and cash equivalents</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LongTermRelatedPartyDebt" xlink:label="siri_LongTermRelatedPartyDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LongTermRelatedPartyDebt" xlink:to="siri_LongTermRelatedPartyDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LongTermRelatedPartyDebt_lbl" xml:lang="en-US">Long-term Related Party Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="siri_LongTermRelatedPartyDebt_lbl" xml:lang="en-US">Related party long-term debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_LongTermRelatedPartyDebt_lbl" xml:lang="en-US">Long-term related party debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LongTermRelatedPartyDebt_lbl" xml:lang="en-US">Sum of the carrying values as of the balance sheet date of all related party long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DocumentAndEntityInformationAbstract" xlink:label="siri_DocumentAndEntityInformationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DocumentAndEntityInformationAbstract" xlink:to="siri_DocumentAndEntityInformationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US">Document and Entity Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DocumentAndEntityInformationAbstract_lbl" xml:lang="en-US">Document And Entity Information.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="lab_EntityRegistrantName" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityRegistrantName" xml:lang="en-US">Entity Registrant Name</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="lab_EntityCentralIndexKey" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityCentralIndexKey" xml:lang="en-US">Entity Central Index Key</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentType" xlink:label="dei_DocumentType" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="lab_DocumentType" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DocumentType" xml:lang="en-US">Document Type</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="lab_DocumentPeriodEndDate" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DocumentPeriodEndDate" xml:lang="en-US">Document Period End Date</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="lab_DocumentFiscalYearFocus" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DocumentFiscalYearFocus" xml:lang="en-US">Document Fiscal Year Focus</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="lab_DocumentFiscalPeriodFocus" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DocumentFiscalPeriodFocus" xml:lang="en-US">Document Fiscal Period Focus</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="lab_AmendmentFlag" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AmendmentFlag" xml:lang="en-US">Amendment Flag</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="lab_CurrentFiscalYearEndDate" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CurrentFiscalYearEndDate" xml:lang="en-US">Current Fiscal Year End Date</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="lab_EntityWellKnownSeasonedIssuer" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityWellKnownSeasonedIssuer" xml:lang="en-US">Entity Well-known Seasoned Issuer</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="dei_EntityVoluntaryFilers" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityVoluntaryFilers" xlink:to="lab_EntityVoluntaryFilers" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityVoluntaryFilers" xml:lang="en-US">Entity Voluntary Filers</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="lab_EntityCurrentReportingStatus" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityCurrentReportingStatus" xml:lang="en-US">Entity Current Reporting Status</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="lab_EntityFilerCategory" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityFilerCategory" xml:lang="en-US">Entity Filer Category</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityPublicFloat" xlink:label="dei_EntityPublicFloat" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPublicFloat" xlink:to="lab_EntityPublicFloat" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityPublicFloat" xml:lang="en-US">Entity Public Float</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="lab_EntityCommonStockSharesOutstanding" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EntityCommonStockSharesOutstanding" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="lab_StatementTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementTable" xml:lang="en-US">Statement [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="lab_StatementClassOfStockAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementClassOfStockAxis" xml:lang="en-US">Class of Stock [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="us-gaap_ClassOfStockDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="lab_ClassOfStockDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfStockDomain" xml:lang="en-US">Class of Stock [Domain]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="lab_StatementLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementLineItems" xml:lang="en-US">Statement [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="us-gaap_PreferredStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockMember" xlink:to="lab_PreferredStockMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockMember" xml:lang="en-US">Preferred Stock</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockLiquidationPreference" xlink:label="us-gaap_PreferredStockLiquidationPreference" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockLiquidationPreference" xlink:to="lab_PreferredStockLiquidationPreference" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockLiquidationPreference" xml:lang="en-US">Preferred Stock, Liquidation Preference Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_PreferredStockLiquidationPreference" xml:lang="en-US">Preferred stock Series B, liquidation preference</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PreferredStockLiquidationPreference" xml:lang="en-US">Preferred stock, liquidation preference</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_StatementOfStockholdersEquityAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockMember" xlink:label="us-gaap_CommonStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="lab_CommonStockMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockMember" xml:lang="en-US">Common Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockMember" xml:lang="en-US">Common Stock</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="us-gaap_AdditionalPaidInCapitalMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_AdditionalPaidInCapitalMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdditionalPaidInCapitalMember" xml:lang="en-US">Additional Paid-in Capital [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdditionalPaidInCapitalMember" xml:lang="en-US">Additional Paid-in Capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_AccumulatedOtherComprehensiveIncomeMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Accumulated Other Comprehensive Loss [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Accumulated Other Comprehensive Income (loss)</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReceivablesFromDistributors" xlink:label="siri_ReceivablesFromDistributors" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReceivablesFromDistributors" xlink:to="siri_ReceivablesFromDistributors_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReceivablesFromDistributors_lbl" xml:lang="en-US">Receivables from Distributors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="siri_ReceivablesFromDistributors_lbl" xml:lang="en-US">Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="siri_ReceivablesFromDistributors_lbl" xml:lang="en-US">Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReceivablesFromDistributors_lbl" xml:lang="en-US">Receivables from distributors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReceivablesFromDistributors_lbl" xml:lang="en-US">Amounts due from OEMs and other distributors.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="us-gaap_InterestPayableCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPayableCurrent" xlink:to="lab_InterestPayableCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InterestPayableCurrent" xml:lang="en-US">Interest Payable, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_InterestPayableCurrent" xml:lang="en-US">Accrued interest with Liberty Media to related party current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestPayableCurrent" xml:lang="en-US">Accrued interest</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherDeferredCreditsCurrent" xlink:label="us-gaap_OtherDeferredCreditsCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherDeferredCreditsCurrent" xlink:to="lab_OtherDeferredCreditsCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherDeferredCreditsCurrent" xml:lang="en-US">Current portion of deferred credit on executory contracts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherDeferredCreditsCurrent" xml:lang="en-US">Other Deferred Credits, Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherDeferredCreditsNoncurrent" xlink:label="us-gaap_OtherDeferredCreditsNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherDeferredCreditsNoncurrent" xlink:to="lab_OtherDeferredCreditsNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherDeferredCreditsNoncurrent" xml:lang="en-US">Deferred credit on executory contracts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherDeferredCreditsNoncurrent" xml:lang="en-US">Other Deferred Credits, Noncurrent</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="us-gaap_LongTermDebtAndCapitalLeaseObligations" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:to="lab_LongTermDebtAndCapitalLeaseObligations" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="lab_StockholdersEquityAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockholdersEquityAbstract" xml:lang="en-US">Stockholders' equity:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockholdersEquityAbstract" xml:lang="en-US">Stockholders' Equity Attributable to Parent [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EquipmentRevenue" xlink:label="siri_EquipmentRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EquipmentRevenue" xlink:to="siri_EquipmentRevenue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EquipmentRevenue_lbl" xml:lang="en-US">Equipment Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EquipmentRevenue_lbl" xml:lang="en-US">Revenue and royalties from the sale of radios, components and accessories.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EquipmentRevenue_lbl" xml:lang="en-US">Equipment revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="us-gaap_SalesRevenueNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNet" xlink:to="lab_SalesRevenueNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SalesRevenueNet" xml:lang="en-US">Sales Revenue, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_SalesRevenueNet" xml:lang="en-US">Total revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SalesRevenueNet" xml:lang="en-US">Total revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="us-gaap_CostsAndExpensesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostsAndExpensesAbstract" xlink:to="lab_CostsAndExpensesAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfGoodsAndServicesSoldAbstract" xlink:label="us-gaap_CostOfGoodsAndServicesSoldAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsAndServicesSoldAbstract" xlink:to="lab_CostOfGoodsAndServicesSoldAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CostOfGoodsAndServicesSoldAbstract" xml:lang="en-US">Cost of services:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CostOfGoodsAndServicesSoldAbstract" xml:lang="en-US">Cost of Goods and Services Sold [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="us-gaap_CostOfGoodsSold" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsSold" xlink:to="lab_CostOfGoodsSold" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CostOfGoodsSold" xml:lang="en-US">Cost of equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CostOfGoodsSold" xml:lang="en-US">Cost of Goods Sold, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CostOfGoodsSold" xml:lang="en-US">Cost of Goods Sold</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="lab_GeneralAndAdministrativeExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_GeneralAndAdministrativeExpense" xml:lang="en-US">General and administrative</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_GeneralAndAdministrativeExpense" xml:lang="en-US">General and Administrative Expense, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GeneralAndAdministrativeExpense" xml:lang="en-US">General and Administrative Expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="us-gaap_CostsAndExpenses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostsAndExpenses" xlink:to="lab_CostsAndExpenses" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CostsAndExpenses" xml:lang="en-US">Costs and Expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_CostsAndExpenses" xml:lang="en-US">Total operating expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CostsAndExpenses" xml:lang="en-US">Total operating expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CostsAndExpenses" xml:lang="en-US">Total operating expenses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="lab_ShareBasedCompensation" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensation" xml:lang="en-US">Share-based Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ShareBasedCompensation" xml:lang="en-US">Total share-based payment expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensation" xml:lang="en-US">Share-based payment expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="us-gaap_PaidInKindInterest" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaidInKindInterest" xlink:to="lab_PaidInKindInterest" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PaidInKindInterest" xml:lang="en-US">Paid-in-Kind Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_PaidInKindInterest" xml:lang="en-US">Non cash interest expense included in interest costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PaidInKindInterest" xml:lang="en-US">Non-cash interest expense, net of amortization of premium</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestructuringSettlementAndImpairmentProvisions" xlink:label="us-gaap_RestructuringSettlementAndImpairmentProvisions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestructuringSettlementAndImpairmentProvisions" xlink:to="lab_RestructuringSettlementAndImpairmentProvisions" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RestructuringSettlementAndImpairmentProvisions" xml:lang="en-US">Restructuring, Settlement and Impairment Provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RestructuringSettlementAndImpairmentProvisions" xml:lang="en-US">Restructuring, impairments and related costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecognitionOfDeferredRevenue" xlink:label="us-gaap_RecognitionOfDeferredRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecognitionOfDeferredRevenue" xlink:to="lab_RecognitionOfDeferredRevenue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecognitionOfDeferredRevenue" xml:lang="en-US">Recognition of Deferred Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_RecognitionOfDeferredRevenue" xml:lang="en-US">Amortization of deferred income related to equity method investment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecognitionOfDeferredRevenue" xml:lang="en-US">Amortization of deferred income related to equity method investment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:label="us-gaap_GainLossOnDispositionOfAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets" xlink:to="lab_GainLossOnDispositionOfAssets" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GainLossOnDispositionOfAssets" xml:lang="en-US">Gain (Loss) on Disposition of Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_GainLossOnDispositionOfAssets" xml:lang="en-US">Loss on disposal of assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_GainLossOnDispositionOfAssets" xml:lang="en-US">Loss on disposal of assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherReceivables" xlink:label="us-gaap_IncreaseDecreaseInOtherReceivables" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherReceivables" xlink:to="lab_IncreaseDecreaseInOtherReceivables" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInOtherReceivables" xml:lang="en-US">Increase (Decrease) in Other Receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_IncreaseDecreaseInOtherReceivables" xml:lang="en-US">Receivables from distributors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInOtherReceivables" xml:lang="en-US">Receivables from distributors</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="us-gaap_IncreaseDecreaseInInterestPayableNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:to="lab_IncreaseDecreaseInInterestPayableNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInInterestPayableNet" xml:lang="en-US">Accrued interest</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:to="lab_IncreaseDecreaseInOtherOperatingLiabilities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Increase (Decrease) in Other Operating Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Other long-term liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xml:lang="en-US">Proceeds from Sale, Maturity and Collections of Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xml:lang="en-US">Sale of restricted and other investments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xlink:to="lab_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xml:lang="en-US">Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xml:lang="en-US">Foreign currency translation adjustment, net of tax of $63</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xml:lang="en-US">Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xml:lang="en-US">Foreign currency translation adjustment, net of tax of $63</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:to="lab_StockIssuedDuringPeriodValueShareBasedCompensation" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US">Stock Issued During Period, Value, Share-based Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US">Issuance of common stock to employees and employee benefit plans, net of forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US">Share-based payment expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US">Exercise of options and vesting of restricted stock units</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NatureOfOperations" xlink:label="us-gaap_NatureOfOperations" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NatureOfOperations" xlink:to="lab_NatureOfOperations" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EarningsPerShareAbstract" xml:lang="en-US">Earnings per Share [Abstract]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EarningsPerShareAbstract" xml:lang="en-US">Net income (loss) per common share:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="lab_WeightedAverageNumberOfSharesOutstandingAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_WeightedAverageNumberOfSharesOutstandingAbstract" xml:lang="en-US">Weighted average common shares outstanding:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_WeightedAverageNumberOfSharesOutstandingAbstract" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="us-gaap_EarningsPerShareBasic" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="lab_EarningsPerShareBasic" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EarningsPerShareBasic" xml:lang="en-US">Earnings Per Share, Basic</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_EarningsPerShareBasic" xml:lang="en-US">Net income (loss) per common share- basic</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_EarningsPerShareBasic" xml:lang="en-US">Earnings Per Share, Basic, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EarningsPerShareBasic" xml:lang="en-US">Basic</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="lab_WeightedAverageNumberOfSharesOutstandingBasic" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Average common shares outstanding-basic</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Basic</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareDiluted" xlink:to="lab_EarningsPerShareDiluted" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EarningsPerShareDiluted" xml:lang="en-US">Earnings Per Share, Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_EarningsPerShareDiluted" xml:lang="en-US">Net income (loss) per common share- diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_EarningsPerShareDiluted" xml:lang="en-US">Earnings Per Share, Diluted, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EarningsPerShareDiluted" xml:lang="en-US">Diluted</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="lab_WeightedAverageNumberOfDilutedSharesOutstanding" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteAndTransmission" xlink:label="siri_SatelliteAndTransmission" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteAndTransmission" xlink:to="siri_SatelliteAndTransmission_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteAndTransmission_lbl" xml:lang="en-US">Satellite and Transmission</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteAndTransmission_lbl" xml:lang="en-US">Costs associated with the operation and maintenance of our satellites; satellite telemetry, tracking and control system; terrestrial repeater network; satellite uplink facility; and broadcast studios.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueShareAndRoyalties" xlink:label="siri_RevenueShareAndRoyalties" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueShareAndRoyalties" xlink:to="siri_RevenueShareAndRoyalties_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueShareAndRoyalties_lbl" xml:lang="en-US">Revenue Share and Royalties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueShareAndRoyalties_lbl" xml:lang="en-US">Distribution and content provider revenue share, residuals and broadcast and web streaming royalties.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueShareAndRoyalties_lbl" xml:lang="en-US">Revenue share and royalties</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CustomerServiceAndBilling" xlink:label="siri_CustomerServiceAndBilling" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CustomerServiceAndBilling" xlink:to="siri_CustomerServiceAndBilling_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CustomerServiceAndBilling_lbl" xml:lang="en-US">Customer Service and Billing</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CustomerServiceAndBilling_lbl" xml:lang="en-US">Customer service and billing</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CustomerServiceAndBilling_lbl" xml:lang="en-US">Customer service and billing expenses include costs associated with the operation of our customer service centers and subscriber management systems as well as bad debt expense.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IncomeLossBeforeIncomeTaxes" xlink:label="siri_IncomeLossBeforeIncomeTaxes" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IncomeLossBeforeIncomeTaxes" xlink:to="siri_IncomeLossBeforeIncomeTaxes_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IncomeLossBeforeIncomeTaxes_lbl" xml:lang="en-US">Income Loss before Income Taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="siri_IncomeLossBeforeIncomeTaxes_lbl" xml:lang="en-US">Income (loss) before income taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IncomeLossBeforeIncomeTaxes_lbl" xml:lang="en-US">Income before income taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IncomeLossBeforeIncomeTaxes_lbl" xml:lang="en-US">Sum of operating profit and nonoperating income (expense) before income taxes.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="us-gaap_LongTermDebtCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="lab_LongTermDebtCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongTermDebtCurrent" xml:lang="en-US">Long-term Debt, Current Maturities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_LongTermDebtCurrent" xml:lang="en-US">Long-term Debt, Current Maturities, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LongTermDebtCurrent" xml:lang="en-US">Current maturities of long-term debt</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RestrictedCashAndInvestmentsDisclosureTextBlock" xlink:label="siri_RestrictedCashAndInvestmentsDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RestrictedCashAndInvestmentsDisclosureTextBlock" xlink:to="siri_RestrictedCashAndInvestmentsDisclosureTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RestrictedCashAndInvestmentsDisclosureTextBlock_lbl" xml:lang="en-US">Restricted Cash and Investments Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RestrictedCashAndInvestmentsDisclosureTextBlock_lbl" xml:lang="en-US">Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RestrictedCashAndInvestmentsDisclosureTextBlock_lbl" xml:lang="en-US">This item includes equity method investments, convertible unsecured subordinated debentures, auction rate certificates, and restricted cash and investments (deposits placed into escrow for the benefit of third parties) held by the Company.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InterestCostsDisclosureTextBlock" xlink:label="siri_InterestCostsDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InterestCostsDisclosureTextBlock" xlink:to="siri_InterestCostsDisclosureTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InterestCostsDisclosureTextBlock_lbl" xml:lang="en-US">Interest Costs Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InterestCostsDisclosureTextBlock_lbl" xml:lang="en-US">Interest Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InterestCostsDisclosureTextBlock_lbl" xml:lang="en-US">Description of interest costs incurred.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SubscriberRevenueDisclosureTextBlock" xlink:label="siri_SubscriberRevenueDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubscriberRevenueDisclosureTextBlock" xlink:to="siri_SubscriberRevenueDisclosureTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubscriberRevenueDisclosureTextBlock_lbl" xml:lang="en-US">Subscriber Revenue Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SubscriberRevenueDisclosureTextBlock_lbl" xml:lang="en-US">Subscriber Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberRevenueDisclosureTextBlock_lbl" xml:lang="en-US">Description of subscription fees, revenue derived from our agreements with daily rental fleet operators, non-refundable activation and other fees and the effect of rebates.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="lab_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US">Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US">Total comprehensive income (loss)</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures" xlink:to="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures_lbl" xml:lang="en-US">Issuance of Common Stock to Employees and Employee Benefit Plans Net of Forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures_lbl" xml:lang="en-US">Issuance of common stock to employees and employee benefit plans, net of forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures_lbl" xml:lang="en-US">Issuance of common stock to employees and employee benefit plans, net of forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeitures_lbl" xml:lang="en-US">Issuance of common stock to employees and employee benefit plans, net of forfeitures.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares" xlink:to="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares_lbl" xml:lang="en-US">Issuance of Common Stock to Employees and Employee Benefit Plans, Net of Forfeitures, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares_lbl" xml:lang="en-US">Issuance of common stock to employees and employee benefit plans, net of forfeitures, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IssuanceOfCommonStockToEmployeesAndEmployeeBenefitPlansNetOfForfeituresShares_lbl" xml:lang="en-US">Issuance of common stock to employees and employee benefit plans, net of forfeitures, Shares.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt" xlink:label="us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromRepaymentsOfOtherLongTermDebt" xlink:to="lab_ProceedsFromRepaymentsOfOtherLongTermDebt" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromRepaymentsOfOtherLongTermDebt" xml:lang="en-US">Proceeds from (Repayments of) Other Long-term Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ProceedsFromRepaymentsOfOtherLongTermDebt" xml:lang="en-US">Proceeds from (Repayments of) Other Long-term Debt, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromRepaymentsOfOtherLongTermDebt" xml:lang="en-US">Payment of premiums on redemption of debt</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LossOnEquityInvestments" xlink:label="siri_LossOnEquityInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LossOnEquityInvestments" xlink:to="siri_LossOnEquityInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LossOnEquityInvestments_lbl" xml:lang="en-US">Loss on equity investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_LossOnEquityInvestments_lbl" xml:lang="en-US">Loss on unconsolidated entity investments, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LossOnEquityInvestments_lbl" xml:lang="en-US">Loss on equity investments.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="us-gaap_DeferredTaxAssetsNetCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsNetCurrent" xlink:to="lab_DeferredTaxAssetsNetCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsNetCurrent" xml:lang="en-US">Deferred Tax Assets, Net, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_DeferredTaxAssetsNetCurrent" xml:lang="en-US">Deferred Tax Asset, Net, Current, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_DeferredTaxAssetsNetCurrent" xml:lang="en-US">Deferred Tax Asset, Net, Current, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredTaxAssetsNetCurrent" xml:lang="en-US">Deferred Tax Asset, Net, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsNetCurrent" xml:lang="en-US">Deferred tax asset</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SaleLeasebackOfEquipment" xlink:label="siri_SaleLeasebackOfEquipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SaleLeasebackOfEquipment" xlink:to="siri_SaleLeasebackOfEquipment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SaleLeasebackOfEquipment_lbl" xml:lang="en-US">Sale leaseback of equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SaleLeasebackOfEquipment_lbl" xml:lang="en-US">Sale-leaseback of equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SaleLeasebackOfEquipment_lbl" xml:lang="en-US">Sale-leaseback of equipment.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:to="lab_StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodSharesShareBasedCompensation" xml:lang="en-US">Exercise of options and vesting of restricted stock units, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodSharesShareBasedCompensation" xml:lang="en-US">Stock Issued During Period, Shares, Share-based Compensation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="lab_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_StockIssuedDuringPeriodWarrantExercised" xlink:label="siri_StockIssuedDuringPeriodWarrantExercised" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_StockIssuedDuringPeriodWarrantExercised" xlink:to="siri_StockIssuedDuringPeriodWarrantExercised_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_StockIssuedDuringPeriodWarrantExercised_lbl" xml:lang="en-US">Stock Issued During Period Warrant Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_StockIssuedDuringPeriodWarrantExercised_lbl" xml:lang="en-US">Common stock issuance upon exercise of warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_StockIssuedDuringPeriodWarrantExercised_lbl" xml:lang="en-US">Stock issued during period warrant exercised.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_StockIssuedDuringPeriodWarrantExercisedShares" xlink:label="siri_StockIssuedDuringPeriodWarrantExercisedShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_StockIssuedDuringPeriodWarrantExercisedShares" xlink:to="siri_StockIssuedDuringPeriodWarrantExercisedShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_StockIssuedDuringPeriodWarrantExercisedShares_lbl" xml:lang="en-US">Stock Issued During Period Warrant Exercised Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_StockIssuedDuringPeriodWarrantExercisedShares_lbl" xml:lang="en-US">Common stock issuance upon exercise of warrants, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_StockIssuedDuringPeriodWarrantExercisedShares_lbl" xml:lang="en-US">Stock Issued During Period Warrant Exercised Shares.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CommonStockIssuanceUponExerciseOfWarrants" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrants" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommonStockIssuanceUponExerciseOfWarrants" xlink:to="siri_CommonStockIssuanceUponExerciseOfWarrants_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrants_lbl" xml:lang="en-US">Common Stock Issuance upon Exercise of Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrants_lbl" xml:lang="en-US">Common stock issuance upon exercise of warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrants_lbl" xml:lang="en-US">Common stock issuance upon exercise of warrants.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsReceivableNetAbstract" xlink:label="us-gaap_AccountsReceivableNetAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetAbstract" xlink:to="lab_AccountsReceivableNetAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountsReceivableNetAbstract" xml:lang="en-US">Accounts Receivable, Net [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_AccountsReceivableNetAbstract" xml:lang="en-US">Accounts Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccountsReceivableNetAbstract" xml:lang="en-US">Accounts receivable, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent" xlink:label="us-gaap_AccountsReceivableGrossCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableGrossCurrent" xlink:to="lab_AccountsReceivableGrossCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountsReceivableGrossCurrent" xml:lang="en-US">Accounts Receivable, Gross, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccountsReceivableGrossCurrent" xml:lang="en-US">Gross accounts receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="lab_AllowanceForDoubtfulAccountsReceivableCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US">Allowance for Doubtful Accounts Receivable, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US">Allowance for doubtful accounts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US">Allowance for Doubtful Accounts Receivable, Current, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US">Allowance for Doubtful Accounts Receivable, Current, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US">Allowance for doubtful accounts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US">Allowance for doubtful accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryNetAbstract" xlink:label="us-gaap_InventoryNetAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNetAbstract" xlink:to="lab_InventoryNetAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryNetAbstract" xml:lang="en-US">Inventory, Net [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InventoryNetAbstract" xml:lang="en-US">Inventory, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="us-gaap_InventoryRawMaterials" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryRawMaterials" xlink:to="lab_InventoryRawMaterials" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryRawMaterials" xml:lang="en-US">Inventory, Raw Materials</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_InventoryRawMaterials" xml:lang="en-US">Inventory, Raw Materials, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InventoryRawMaterials" xml:lang="en-US">Raw materials</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryFinishedGoods" xlink:label="us-gaap_InventoryFinishedGoods" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryFinishedGoods" xlink:to="lab_InventoryFinishedGoods" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryFinishedGoods" xml:lang="en-US">Inventory, Finished Goods</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_InventoryFinishedGoods" xml:lang="en-US">Inventory, Finished Goods, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InventoryFinishedGoods" xml:lang="en-US">Finished goods</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfSignificantAccountingPoliciesTextualAbstract" xlink:label="siri_SummaryOfSignificantAccountingPoliciesTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfSignificantAccountingPoliciesTextualAbstract" xlink:to="siri_SummaryOfSignificantAccountingPoliciesTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SummaryOfSignificantAccountingPoliciesTextualAbstract_lbl" xml:lang="en-US">Summary of Significant Accounting Policies (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SummaryOfSignificantAccountingPoliciesTextualAbstract_lbl" xml:lang="en-US">Summary of Significant Accounting Policies (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SummaryOfSignificantAccountingPoliciesTextualAbstract_lbl" xml:lang="en-US">Summary of significant accounting policies.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SubscriptionFees" xlink:label="siri_SubscriptionFees" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubscriptionFees" xlink:to="siri_SubscriptionFees_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubscriptionFees_lbl" xml:lang="en-US">Subscription Fees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SubscriptionFees_lbl" xml:lang="en-US">Subscription fees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriptionFees_lbl" xml:lang="en-US">Subscription fees.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ActivationFees" xlink:label="siri_ActivationFees" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ActivationFees" xlink:to="siri_ActivationFees_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ActivationFees_lbl" xml:lang="en-US">Activation Fees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ActivationFees_lbl" xml:lang="en-US">Activation fees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ActivationFees_lbl" xml:lang="en-US">Activation fees.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestCostsCapitalized" xlink:label="us-gaap_InterestCostsCapitalized" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestCostsCapitalized" xlink:to="lab_InterestCostsCapitalized" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestCostsCapitalized" xml:lang="en-US">Interest costs capitalized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InterestCostsCapitalized" xml:lang="en-US">Interest Costs, Capitalized During Period</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InterestCostsTextualAbstract" xlink:label="siri_InterestCostsTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InterestCostsTextualAbstract" xlink:to="siri_InterestCostsTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InterestCostsTextualAbstract_lbl" xml:lang="en-US">Interest Costs (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InterestCostsTextualAbstract_lbl" xml:lang="en-US">Interest Costs (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InterestCostsTextualAbstract_lbl" xml:lang="en-US">Interest costs.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:to="lab_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xml:lang="en-US">Accounts Receivable, net</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReceivablesFromDistributorsAbstract" xlink:label="siri_ReceivablesFromDistributorsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReceivablesFromDistributorsAbstract" xlink:to="siri_ReceivablesFromDistributorsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReceivablesFromDistributorsAbstract_lbl" xml:lang="en-US">Receivables from Distributors [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReceivablesFromDistributorsAbstract_lbl" xml:lang="en-US">Receivables from distributors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReceivablesFromDistributorsAbstract_lbl" xml:lang="en-US">Receivables from distributors.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryValuationReserves" xlink:label="us-gaap_InventoryValuationReserves" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryValuationReserves" xlink:to="lab_InventoryValuationReserves" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryValuationReserves" xml:lang="en-US">Inventory Valuation Reserves</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_InventoryValuationReserves" xml:lang="en-US">Allowance for obsolescence</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_InventoryValuationReserves" xml:lang="en-US">Inventory Valuation Reserves, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_InventoryValuationReserves" xml:lang="en-US">Inventory Valuation Reserves, Beginning Balance</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="lab_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US">Common stock equivalents</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="lab_LongTermDebt" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_LongTermDebt" xml:lang="en-US">Total debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LongTermDebt" xml:lang="en-US">Total debt</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentFairValue" xlink:label="us-gaap_DebtInstrumentFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFairValue" xlink:to="lab_DebtInstrumentFairValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentFairValue" xml:lang="en-US">Debt Instrument, Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentFairValue" xml:lang="en-US">Fair value approximated</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SubscriberRevenuesAbstract" xlink:label="siri_SubscriberRevenuesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubscriberRevenuesAbstract" xlink:to="siri_SubscriberRevenuesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubscriberRevenuesAbstract_lbl" xml:lang="en-US">Subscriber Revenues [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberRevenuesAbstract_lbl" xml:lang="en-US">Subscriber Revenues.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SubscriberRevenuesAbstract_lbl" xml:lang="en-US">Subscriber Revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" xlink:to="lab_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" xml:lang="en-US">Other Comprehensive Income, Foreign Currency Translation Adjustment, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" xml:lang="en-US">Tax effect on foreign currency translation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="us-gaap_ConsolidationPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConsolidationPolicyTextBlock" xlink:to="lab_ConsolidationPolicyTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ConsolidationPolicyTextBlock" xml:lang="en-US">Consolidation, Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ConsolidationPolicyTextBlock" xml:lang="en-US">Principles of Consolidation</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_BasisOfPresentationPolicyTextBlock" xlink:label="siri_BasisOfPresentationPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_BasisOfPresentationPolicyTextBlock" xlink:to="siri_BasisOfPresentationPolicyTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_BasisOfPresentationPolicyTextBlock_lbl" xml:lang="en-US">Basis of Presentation [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_BasisOfPresentationPolicyTextBlock_lbl" xml:lang="en-US">Basis of Presentation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_BasisOfPresentationPolicyTextBlock_lbl" xml:lang="en-US">Basis of presentation policy text block.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReclassificationsPolicyTextBlock" xlink:label="siri_ReclassificationsPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReclassificationsPolicyTextBlock" xlink:to="siri_ReclassificationsPolicyTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReclassificationsPolicyTextBlock_lbl" xml:lang="en-US">Reclassifications [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReclassificationsPolicyTextBlock_lbl" xml:lang="en-US">Reclassifications</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReclassificationsPolicyTextBlock_lbl" xml:lang="en-US">Reclassifications Policy Text Block.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:to="lab_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis" xlink:to="lab_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis" xml:lang="en-US">Accounts, Notes, Loans and Financing Receivable by Billing Status, Type [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ReceivablesBillingStatusDomain" xlink:label="us-gaap_ReceivablesBillingStatusDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesBillingStatusDomain" xlink:to="lab_ReceivablesBillingStatusDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ReceivablesBillingStatusDomain" xml:lang="en-US">Receivables Billing Status [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnbilledRevenuesMember" xlink:label="us-gaap_UnbilledRevenuesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnbilledRevenuesMember" xlink:to="lab_UnbilledRevenuesMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UnbilledRevenuesMember" xml:lang="en-US">Unbilled Revenues [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_UnbilledRevenuesMember" xml:lang="en-US">Unbilled Revenues [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BilledRevenuesMember" xlink:label="us-gaap_BilledRevenuesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BilledRevenuesMember" xlink:to="lab_BilledRevenuesMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_BilledRevenuesMember" xml:lang="en-US">Billed Revenues [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_BilledRevenuesMember" xml:lang="en-US">Billed Revenues [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="us-gaap_AccountsNotesAndLoansReceivableLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="lab_AccountsNotesAndLoansReceivableLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountsNotesAndLoansReceivableLineItems" xml:lang="en-US">Accounts, Notes, Loans and Financing Receivable [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges" xlink:label="us-gaap_RestructuringCostsAndAssetImpairmentCharges" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestructuringCostsAndAssetImpairmentCharges" xlink:to="lab_RestructuringCostsAndAssetImpairmentCharges_lbl" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:to="lab_PropertyPlantAndEquipmentNetAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentNetAbstract" xml:lang="en-US">Property, Plant and Equipment, Net [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentNetAbstract" xml:lang="en-US">Property and equipment, net</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteSystem" xlink:label="siri_SatelliteSystem" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteSystem" xlink:to="siri_SatelliteSystem_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteSystem_lbl" xml:lang="en-US">Satellite System</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteSystem_lbl" xml:lang="en-US">Satellite system</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteSystem_lbl" xml:lang="en-US">Satellite system.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_TerrestrialRepeaterNetwork" xlink:label="siri_TerrestrialRepeaterNetwork" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_TerrestrialRepeaterNetwork" xlink:to="siri_TerrestrialRepeaterNetwork_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_TerrestrialRepeaterNetwork_lbl" xml:lang="en-US">Terrestrial Repeater Network</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_TerrestrialRepeaterNetwork_lbl" xml:lang="en-US">Terrestrial repeater network</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_TerrestrialRepeaterNetwork_lbl" xml:lang="en-US">Terrestrial repeater network.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeaseholdImprovementsGross" xlink:label="us-gaap_LeaseholdImprovementsGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseholdImprovementsGross" xlink:to="lab_LeaseholdImprovementsGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LeaseholdImprovementsGross" xml:lang="en-US">Leasehold Improvements, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LeaseholdImprovementsGross" xml:lang="en-US">Leasehold improvements</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_BroadcastStudioEquipment" xlink:label="siri_BroadcastStudioEquipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_BroadcastStudioEquipment" xlink:to="siri_BroadcastStudioEquipment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_BroadcastStudioEquipment_lbl" xml:lang="en-US">Broadcast Studio Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_BroadcastStudioEquipment_lbl" xml:lang="en-US">Broadcast studio equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_BroadcastStudioEquipment_lbl" xml:lang="en-US">Broadcast studio equipment.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalizedComputerSoftwareGross" xlink:label="us-gaap_CapitalizedComputerSoftwareGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalizedComputerSoftwareGross" xlink:to="lab_CapitalizedComputerSoftwareGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CapitalizedComputerSoftwareGross" xml:lang="en-US">Capitalized Computer Software, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CapitalizedComputerSoftwareGross" xml:lang="en-US">Capitalized software and hardware</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteTelemetryTrackingAndControlFacilities" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteTelemetryTrackingAndControlFacilities" xlink:to="siri_SatelliteTelemetryTrackingAndControlFacilities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilities_lbl" xml:lang="en-US">Satellite Telemetry Tracking and Control Facilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilities_lbl" xml:lang="en-US">Satellite telemetry, tracking and control facilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilities_lbl" xml:lang="en-US">Satellite telemetry tracking and control facilities.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_FurnitureFixturesEquipmentAndOther" xlink:label="siri_FurnitureFixturesEquipmentAndOther" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_FurnitureFixturesEquipmentAndOther" xlink:to="siri_FurnitureFixturesEquipmentAndOther_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_FurnitureFixturesEquipmentAndOther_lbl" xml:lang="en-US">Furniture, Fixtures Equipment and Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_FurnitureFixturesEquipmentAndOther_lbl" xml:lang="en-US">Furniture, fixtures, equipment and other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_FurnitureFixturesEquipmentAndOther_lbl" xml:lang="en-US">Furniture, fixtures equipment and other.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Land" xlink:label="us-gaap_Land" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Land" xlink:to="lab_Land" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_Land" xml:lang="en-US">Land</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_Land" xml:lang="en-US">Land</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BuildingsAndImprovementsGross" xlink:label="us-gaap_BuildingsAndImprovementsGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BuildingsAndImprovementsGross" xlink:to="lab_BuildingsAndImprovementsGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_BuildingsAndImprovementsGross" xml:lang="en-US">Buildings and Improvements, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_BuildingsAndImprovementsGross" xml:lang="en-US">Buildings and Improvements, Gross, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_BuildingsAndImprovementsGross" xml:lang="en-US">Building</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ConstructionInProgressGross" xlink:label="us-gaap_ConstructionInProgressGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConstructionInProgressGross" xlink:to="lab_ConstructionInProgressGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ConstructionInProgressGross" xml:lang="en-US">Construction in Progress, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ConstructionInProgressGross" xml:lang="en-US">Construction in progress</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="lab_PropertyPlantAndEquipmentGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentGross" xml:lang="en-US">Property, Plant and Equipment, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_PropertyPlantAndEquipmentGross" xml:lang="en-US">Property, Plant and Equipment, Gross, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_PropertyPlantAndEquipmentGross" xml:lang="en-US">Property, Plant and Equipment, Gross, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PropertyPlantAndEquipmentGross" xml:lang="en-US">Total property and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated depreciation and amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated depreciation and amortization</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteSystemMember" xlink:label="siri_SatelliteSystemMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteSystemMember" xlink:to="siri_SatelliteSystemMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteSystemMember_lbl" xml:lang="en-US">Satellite system [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteSystemMember_lbl" xml:lang="en-US">Satellite system [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteSystemMember_lbl" xml:lang="en-US">Satellite system.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_TerrestrialRepeaterNetworkMember" xlink:label="siri_TerrestrialRepeaterNetworkMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_TerrestrialRepeaterNetworkMember" xlink:to="siri_TerrestrialRepeaterNetworkMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_TerrestrialRepeaterNetworkMember_lbl" xml:lang="en-US">Terrestrial repeater network [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_TerrestrialRepeaterNetworkMember_lbl" xml:lang="en-US">Terrestrial repeater network [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_TerrestrialRepeaterNetworkMember_lbl" xml:lang="en-US">Terrestrial repeater network.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ConstructionInProgressOtherMember" xlink:label="siri_ConstructionInProgressOtherMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ConstructionInProgressOtherMember" xlink:to="siri_ConstructionInProgressOtherMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ConstructionInProgressOtherMember_lbl" xml:lang="en-US">Construction in progress other [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ConstructionInProgressOtherMember_lbl" xml:lang="en-US">Other [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ConstructionInProgressOtherMember_lbl" xml:lang="en-US">Construction in progress other.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ConstructionInProgressAbstract" xlink:label="siri_ConstructionInProgressAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ConstructionInProgressAbstract" xlink:to="siri_ConstructionInProgressAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ConstructionInProgressAbstract_lbl" xml:lang="en-US">Construction in progress [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ConstructionInProgressAbstract_lbl" xml:lang="en-US">Construction in progress</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ConstructionInProgressAbstract_lbl" xml:lang="en-US">Construction in progress.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="us-gaap_PropertyPlantAndEquipmentAdditions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentAdditions" xlink:to="lab_PropertyPlantAndEquipmentAdditions" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="us-gaap_EquityMethodInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestments" xlink:to="lab_EquityMethodInvestments" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusCanadaMember" xlink:label="siri_SiriusCanadaMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusCanadaMember" xlink:to="siri_SiriusCanadaMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusCanadaMember_lbl" xml:lang="en-US">Sirius Canada [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusCanadaMember_lbl" xml:lang="en-US">SIRIUS Canada [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusCanadaMember_lbl" xml:lang="en-US">Sirius Canada.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_XmCanadaMember" xlink:label="siri_XmCanadaMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_XmCanadaMember" xlink:to="siri_XmCanadaMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_XmCanadaMember_lbl" xml:lang="en-US">XM Canada [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_XmCanadaMember_lbl" xml:lang="en-US">XM Canada [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_XmCanadaMember_lbl" xml:lang="en-US">XM Canada.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions" xlink:label="us-gaap_EquityMethodInvestmentDividendsOrDistributions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentDividendsOrDistributions" xlink:to="lab_EquityMethodInvestmentDividendsOrDistributions" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="lab_DebtInstrumentInterestRateStatedPercentage" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Interest rate on instrument</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Stated Interest</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EightPercentConvertibleUnsecuredSubordinatedDebentures" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebentures" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EightPercentConvertibleUnsecuredSubordinatedDebentures" xlink:to="siri_EightPercentConvertibleUnsecuredSubordinatedDebentures_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebentures_lbl" xml:lang="en-US">Eight Percent Convertible Unsecured Subordinated Debentures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebentures_lbl" xml:lang="en-US">Face value of 8% convertible unsecured subordinated debentures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebentures_lbl" xml:lang="en-US">Eight percent convertible unsecured subordinated debentures.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CarryingValuesOfHostContract" xlink:label="siri_CarryingValuesOfHostContract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CarryingValuesOfHostContract" xlink:to="siri_CarryingValuesOfHostContract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CarryingValuesOfHostContract_lbl" xml:lang="en-US">Carrying Values of Host Contract</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CarryingValuesOfHostContract_lbl" xml:lang="en-US">Carrying values of the host contract</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CarryingValuesOfHostContract_lbl" xml:lang="en-US">Carrying values of host contract.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_GainOnSaleOfAuctionRateSecurities" xlink:label="siri_GainOnSaleOfAuctionRateSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_GainOnSaleOfAuctionRateSecurities" xlink:to="siri_GainOnSaleOfAuctionRateSecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_GainOnSaleOfAuctionRateSecurities_lbl" xml:lang="en-US">Gain on sale of auction rate securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_GainOnSaleOfAuctionRateSecurities_lbl" xml:lang="en-US">Gain on sale of auction rate securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_GainOnSaleOfAuctionRateSecurities_lbl" xml:lang="en-US">Gain on sale of auction rate securities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="lab_ScheduleOfPropertyPlantAndEquipmentTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfPropertyPlantAndEquipmentTable" xml:lang="en-US">Schedule of Property, Plant and Equipment [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="lab_PropertyPlantAndEquipmentByTypeAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentByTypeAxis" xml:lang="en-US">Property, Plant and Equipment by Type [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="lab_PropertyPlantAndEquipmentTypeDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentTypeDomain" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="lab_PropertyPlantAndEquipmentLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentLineItems" xml:lang="en-US">Property, Plant and Equipment [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationsTextBlock" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationsTextBlock" xlink:to="lab_RecordedUnconditionalPurchaseObligationsTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationsTextBlock" xml:lang="en-US">Recorded Unconditional Purchase Obligations [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationsTextBlock" xml:lang="en-US">Expected contractual cash commitments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationPaymentScheduleAbstract" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationPaymentScheduleAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationPaymentScheduleAbstract" xlink:to="lab_RecordedUnconditionalPurchaseObligationPaymentScheduleAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationPaymentScheduleAbstract" xml:lang="en-US">Recorded Unconditional Purchase Obligation Payment Schedule [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationPaymentScheduleAbstract" xml:lang="en-US">Expected contractual cash commitments</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LongTermDebtObligationsMember" xlink:label="siri_LongTermDebtObligationsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LongTermDebtObligationsMember" xlink:to="siri_LongTermDebtObligationsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LongTermDebtObligationsMember_lbl" xml:lang="en-US">Long-term debt obligations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LongTermDebtObligationsMember_lbl" xml:lang="en-US">Long term debt obligations.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CashInterestPaymentsMember" xlink:label="siri_CashInterestPaymentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CashInterestPaymentsMember" xlink:to="siri_CashInterestPaymentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CashInterestPaymentsMember_lbl" xml:lang="en-US">Cash interest payments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CashInterestPaymentsMember_lbl" xml:lang="en-US">Cash interest payments.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteAndTransmissionMember" xlink:label="siri_SatelliteAndTransmissionMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteAndTransmissionMember" xlink:to="siri_SatelliteAndTransmissionMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteAndTransmissionMember_lbl" xml:lang="en-US">Satellite and transmission [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteAndTransmissionMember_lbl" xml:lang="en-US">Satellite and transmission.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ProgrammingAndContentMember" xlink:label="siri_ProgrammingAndContentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ProgrammingAndContentMember" xlink:to="siri_ProgrammingAndContentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ProgrammingAndContentMember_lbl" xml:lang="en-US">Programming and content [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ProgrammingAndContentMember_lbl" xml:lang="en-US">Programming and content.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_MarketingAndDistributionMember" xlink:label="siri_MarketingAndDistributionMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_MarketingAndDistributionMember" xlink:to="siri_MarketingAndDistributionMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_MarketingAndDistributionMember_lbl" xml:lang="en-US">Marketing and distribution [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_MarketingAndDistributionMember_lbl" xml:lang="en-US">Marketing and distribution.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteIncentivePaymentsMember" xlink:label="siri_SatelliteIncentivePaymentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteIncentivePaymentsMember" xlink:to="siri_SatelliteIncentivePaymentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteIncentivePaymentsMember_lbl" xml:lang="en-US">Satellite incentive payments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteIncentivePaymentsMember_lbl" xml:lang="en-US">Satellite incentive payments.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_OperatingLeaseObligationsMember" xlink:label="siri_OperatingLeaseObligationsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_OperatingLeaseObligationsMember" xlink:to="siri_OperatingLeaseObligationsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_OperatingLeaseObligationsMember_lbl" xml:lang="en-US">Operating lease obligations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_OperatingLeaseObligationsMember_lbl" xml:lang="en-US">Operating lease obligations.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_OthersMember" xlink:label="siri_OthersMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_OthersMember" xlink:to="siri_OthersMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_OthersMember_lbl" xml:lang="en-US">Others [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_OthersMember_lbl" xml:lang="en-US">Others.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationDueWithinOneYear" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationDueWithinOneYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationDueWithinOneYear" xlink:to="lab_RecordedUnconditionalPurchaseObligationDueWithinOneYear" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueWithinOneYear" xml:lang="en-US">2012</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueWithinOneYear" xml:lang="en-US">Recorded Unconditional Purchase Obligation Due within One Year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationDueInSecondYear" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationDueInSecondYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationDueInSecondYear" xlink:to="lab_RecordedUnconditionalPurchaseObligationDueInSecondYear" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInSecondYear" xml:lang="en-US">2013</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInSecondYear" xml:lang="en-US">Recorded Unconditional Purchase Obligation Due in Second Year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationDueInThirdYear" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationDueInThirdYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationDueInThirdYear" xlink:to="lab_RecordedUnconditionalPurchaseObligationDueInThirdYear" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInThirdYear" xml:lang="en-US">2014</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInThirdYear" xml:lang="en-US">Recorded Unconditional Purchase Obligation Due in Third Year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationDueInFourthYear" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationDueInFourthYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationDueInFourthYear" xlink:to="lab_RecordedUnconditionalPurchaseObligationDueInFourthYear" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInFourthYear" xml:lang="en-US">2015</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInFourthYear" xml:lang="en-US">Recorded Unconditional Purchase Obligation Due in Fourth Year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationDueInFifthYear" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationDueInFifthYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationDueInFifthYear" xlink:to="lab_RecordedUnconditionalPurchaseObligationDueInFifthYear" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInFifthYear" xml:lang="en-US">2016</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueInFifthYear" xml:lang="en-US">Recorded Unconditional Purchase Obligation Due in Fifth Year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationDueAfterFifthYear" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationDueAfterFifthYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationDueAfterFifthYear" xlink:to="lab_RecordedUnconditionalPurchaseObligationDueAfterFifthYear" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueAfterFifthYear" xml:lang="en-US">Recorded Unconditional Purchase Obligation Due after Fifth Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligationDueAfterFifthYear" xml:lang="en-US">Thereafter</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligation" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligation" xlink:to="lab_RecordedUnconditionalPurchaseObligation" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligation" xml:lang="en-US">Recorded Unconditional Purchase Obligation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligation" xml:lang="en-US">Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RecordedUnconditionalPurchaseObligation" xml:lang="en-US">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationTable" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationTable" xlink:to="lab_RecordedUnconditionalPurchaseObligationTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationTable" xml:lang="en-US">Recorded Unconditional Purchase Obligation [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" xlink:to="lab_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis" xml:lang="en-US">Recorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" xlink:label="us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" xlink:to="lab_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain" xml:lang="en-US">Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RecordedUnconditionalPurchaseObligationLineItems" xlink:label="us-gaap_RecordedUnconditionalPurchaseObligationLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RecordedUnconditionalPurchaseObligationLineItems" xlink:to="lab_RecordedUnconditionalPurchaseObligationLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RecordedUnconditionalPurchaseObligationLineItems" xml:lang="en-US">Recorded Unconditional Purchase Obligation [Line Items]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CommitmentsAndContingenciesTextualAbstract" xlink:label="siri_CommitmentsAndContingenciesTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommitmentsAndContingenciesTextualAbstract" xlink:to="siri_CommitmentsAndContingenciesTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommitmentsAndContingenciesTextualAbstract_lbl" xml:lang="en-US">Commitments and Contingencies (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommitmentsAndContingenciesTextualAbstract_lbl" xml:lang="en-US">Commitments and Contingencies (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommitmentsAndContingenciesTextualAbstract_lbl" xml:lang="en-US">Commitments and Contingencies.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReserveForUncertainTaxes" xlink:label="siri_ReserveForUncertainTaxes" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReserveForUncertainTaxes" xlink:to="siri_ReserveForUncertainTaxes_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReserveForUncertainTaxes_lbl" xml:lang="en-US">Reserve for Uncertain Taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReserveForUncertainTaxes_lbl" xml:lang="en-US">Reserve for uncertain taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReserveForUncertainTaxes_lbl" xml:lang="en-US">Reserve for uncertain taxes.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AdditionalStockholdersEquityTextualAbstract" xlink:label="siri_AdditionalStockholdersEquityTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AdditionalStockholdersEquityTextualAbstract" xlink:to="siri_AdditionalStockholdersEquityTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AdditionalStockholdersEquityTextualAbstract_lbl" xml:lang="en-US">Additional Stockholders Equity (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AdditionalStockholdersEquityTextualAbstract_lbl" xml:lang="en-US">Additional Stockholder's Equity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AdditionalStockholdersEquityTextualAbstract_lbl" xml:lang="en-US">Additional Stockholder's Equity (Textual) [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements" xlink:label="siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements" xlink:to="siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements_lbl" xml:lang="en-US">Number of Common Shares Exchanged under Share Lending Agreements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements_lbl" xml:lang="en-US">Number of common shares exchanged under share lending agreements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfCommonSharesExchangedUnderShareLendingAgreements_lbl" xml:lang="en-US">Number of common shares exchanged under share lending agreements.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ExchangeFeePerCommonShare" xlink:label="siri_ExchangeFeePerCommonShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ExchangeFeePerCommonShare" xlink:to="siri_ExchangeFeePerCommonShare_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ExchangeFeePerCommonShare_lbl" xml:lang="en-US">Exchange Fee Per Common Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ExchangeFeePerCommonShare_lbl" xml:lang="en-US">Exchange fee per common share for loaned shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ExchangeFeePerCommonShare_lbl" xml:lang="en-US">Exchange fee per common share.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed" xlink:label="siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed" xlink:to="siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed_lbl" xml:lang="en-US">Number of Share Common Shares Returned on Common Stock Borrowed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed_lbl" xml:lang="en-US">Number of share common shares returned on common stock borrowed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfShareCommonSharesReturnedOnCommonStockBorrowed_lbl" xml:lang="en-US">Number of share common shares returned on common stock borrowed.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet" xlink:to="siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet_lbl" xml:lang="en-US">Unamortized Debt Issuance Costs Recorded in Deferred Financing Fees Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet_lbl" xml:lang="en-US">Unamortized, debt issuance costs recorded in deferred financing fees, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInDeferredFinancingFeesNet_lbl" xml:lang="en-US">Unamortized, debt issuance costs recorded in deferred financing fees, net.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets" xlink:to="siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets_lbl" xml:lang="en-US">Unamortized Debt Issuance Costs Recorded in Long Term Related Party Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets_lbl" xml:lang="en-US">Unamortized, debt issuance costs recorded in long-term related party assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_UnamortizedDebtIssuanceCostsRecordedInLongTermRelatedPartyAssets_lbl" xml:lang="en-US">Unamortized, debt issuance costs recorded in long-term related party assets.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EstimatedFairValueOfRemainingLoanedShares" xlink:label="siri_EstimatedFairValueOfRemainingLoanedShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EstimatedFairValueOfRemainingLoanedShares" xlink:to="siri_EstimatedFairValueOfRemainingLoanedShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EstimatedFairValueOfRemainingLoanedShares_lbl" xml:lang="en-US">Estimated Fair Value of Remaining Loaned Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EstimatedFairValueOfRemainingLoanedShares_lbl" xml:lang="en-US">Estimated fair value of remaining loaned shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EstimatedFairValueOfRemainingLoanedShares_lbl" xml:lang="en-US">Estimated fair value of remaining loaned shares.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider" xlink:label="siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider" xlink:to="siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" xml:lang="en-US">Common Stock Delivered under Agreement with Programming Provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" xml:lang="en-US">Common stock delivered under seven agreement with programming provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" xml:lang="en-US">Common stock delivered under agreement with programming provider.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider" xlink:label="siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider" xlink:to="siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" xml:lang="en-US">Value of Common Stock Delivered under Agreement with Programming Provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" xml:lang="en-US">Value of common stock delivered under agreement with sports programming provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ValueOfCommonStockDeliveredUnderAgreementWithProgrammingProvider_lbl" xml:lang="en-US">Value of common stock delivered under agreement with programming provider.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets" xlink:label="siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets" xlink:to="siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets_lbl" xml:lang="en-US">Remaining Value of Common Stock Included in Other Current Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets_lbl" xml:lang="en-US">Remaining value of common stock included in other current assets related to the seven year agreement with sports provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RemainingValueOfCommonStockIncludedInOtherCurrentAssets_lbl" xml:lang="en-US">Remaining value of common stock included in other current assets.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CommonStockOutstandingAfterConversion" xlink:label="siri_CommonStockOutstandingAfterConversion" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommonStockOutstandingAfterConversion" xlink:to="siri_CommonStockOutstandingAfterConversion_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommonStockOutstandingAfterConversion_lbl" xml:lang="en-US">Common stock outstanding after conversion</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommonStockOutstandingAfterConversion_lbl" xml:lang="en-US">Percentage of shares Liberty Media would own of our common stock after conversion of Series B Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommonStockOutstandingAfterConversion_lbl" xml:lang="en-US">Common stock outstanding after conversion.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:to="lab_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US">Class of Warrant or Right, Exercise Price of Warrants or Rights</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US">Average exercise price of warrant</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_WarrantsExercisedToPurchaseCommonStock" xlink:label="siri_WarrantsExercisedToPurchaseCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_WarrantsExercisedToPurchaseCommonStock" xlink:to="siri_WarrantsExercisedToPurchaseCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_WarrantsExercisedToPurchaseCommonStock_lbl" xml:lang="en-US">Warrants Exercised to Purchase Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_WarrantsExercisedToPurchaseCommonStock_lbl" xml:lang="en-US">Warrants exercised to purchase common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_WarrantsExercisedToPurchaseCommonStock_lbl" xml:lang="en-US">Warrants exercised to purchase common stock.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IssuanceOfCommonStock" xlink:label="siri_IssuanceOfCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IssuanceOfCommonStock" xlink:to="siri_IssuanceOfCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IssuanceOfCommonStock_lbl" xml:lang="en-US">Issuance of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IssuanceOfCommonStock_lbl" xml:lang="en-US">Issuance of shares of common stock resulting from the exercise of warrants based on the exercise price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IssuanceOfCommonStock_lbl" xml:lang="en-US">Issuance of common stock.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnamortizedDebtIssuanceExpense" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnamortizedDebtIssuanceExpense" xlink:to="lab_UnamortizedDebtIssuanceExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UnamortizedDebtIssuanceExpense" xml:lang="en-US">Unamortized Debt Issuance Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_UnamortizedDebtIssuanceExpense" xml:lang="en-US">Unamortized, debt issuance costs</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_WarrantsToAcquireCommonStock" xlink:label="siri_WarrantsToAcquireCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_WarrantsToAcquireCommonStock" xlink:to="siri_WarrantsToAcquireCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_WarrantsToAcquireCommonStock_lbl" xml:lang="en-US">Warrants to Acquire Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_WarrantsToAcquireCommonStock_lbl" xml:lang="en-US">Number of outstanding warrants to acquire common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_WarrantsToAcquireCommonStock_lbl" xml:lang="en-US">Warrants to acquire common stock.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="us-gaap_ScheduleOfStockByClassTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockByClassTable" xlink:to="lab_ScheduleOfStockByClassTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfStockByClassTable" xml:lang="en-US">Schedule of Stock by Class [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="us-gaap_ClassOfStockLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockLineItems" xlink:to="lab_ClassOfStockLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfStockLineItems" xml:lang="en-US">Class of Stock [Line Items]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteMember" xlink:label="siri_SatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteMember" xlink:to="siri_SatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteMember_lbl" xml:lang="en-US">Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteMember_lbl" xml:lang="en-US">Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteMember_lbl" xml:lang="en-US">Satellite.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures" xlink:label="siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures" xlink:to="siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures_lbl" xml:lang="en-US">Carrying values of embedded derivative related to investment in debentures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures_lbl" xml:lang="en-US">Carrying values of embedded derivative related to investment in debentures.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CarryingValuesOfEmbeddedDerivativeRelatedToInvestmentInDebentures_lbl" xml:lang="en-US">Carrying values of embedded derivative related to investment in debentures</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment" xlink:label="siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment" xlink:to="siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment_lbl" xml:lang="en-US">Agreement to Repurchase of Certain Products Shipped to Distributor from Date of Shipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment_lbl" xml:lang="en-US">Number of days in the event within which certain new products are not shipped by a distributor to a customer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AgreementToRepurchaseOfCertainProductsShippedToDistributorFromDateOfShipment_lbl" xml:lang="en-US">Agreement to repurchase of certain products shipped to distributor from date of shipment.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife" xlink:label="siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife" xlink:to="siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife_lbl" xml:lang="en-US">Period Beyond Expected Operating Performance of Design Life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife_lbl" xml:lang="en-US">Period beyond expected operating performance of design life for XM-4</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PeriodBeyondExpectedOperatingPerformanceOfDesignLife_lbl" xml:lang="en-US">Period beyond expected operating performance of design life.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites" xlink:label="siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites" xlink:to="siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites_lbl" xml:lang="en-US">Accrued Amount Related to Contingent in Orbit Performance Payments for Satellites</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites_lbl" xml:lang="en-US">Accrual related to contingent performance payments for XM-3 and XM-4</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AccruedAmountRelatedToContingentInOrbitPerformancePaymentsForSatellites_lbl" xml:lang="en-US">Accrual related to contingent in-orbit performance payments for XM-3 and XM-4.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteExpectedOperatingPerformanceOverDesignLife" xlink:label="siri_SatelliteExpectedOperatingPerformanceOverDesignLife" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteExpectedOperatingPerformanceOverDesignLife" xlink:to="siri_SatelliteExpectedOperatingPerformanceOverDesignLife_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteExpectedOperatingPerformanceOverDesignLife_lbl" xml:lang="en-US">Satellite Expected Operating Performance over Design Life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteExpectedOperatingPerformanceOverDesignLife_lbl" xml:lang="en-US">Operating performance over design life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteExpectedOperatingPerformanceOverDesignLife_lbl" xml:lang="en-US">Satellite expected operating performance over design life.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsGross" xlink:to="lab_FiniteLivedIntangibleAssetsGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsGross" xml:lang="en-US">Finite-Lived Intangible Assets, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsGross" xml:lang="en-US">Gross carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_FiniteLivedIntangibleAssetsGross" xml:lang="en-US">Finite-Lived Intangible Assets, Gross, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsGross" xml:lang="en-US">Gross Carrying Value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="lab_FiniteLivedIntangibleAssetsAccumulatedAmortization" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsAccumulatedAmortization" xml:lang="en-US">Finite-Lived Intangible Assets, Accumulated Amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_FiniteLivedIntangibleAssetsAccumulatedAmortization" xml:lang="en-US">Accumulated amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsAccumulatedAmortization" xml:lang="en-US">Accumulated amortization</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="lab_FiniteLivedIntangibleAssetsNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsNet" xml:lang="en-US">Finite Lived Intangible Assets Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_FiniteLivedIntangibleAssetsNet" xml:lang="en-US">Net carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsNet" xml:lang="en-US">Net carrying value</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_YearsInWhichLicensesExpiresTableTextBlock" xlink:label="siri_YearsInWhichLicensesExpiresTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_YearsInWhichLicensesExpiresTableTextBlock" xlink:to="siri_YearsInWhichLicensesExpiresTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_YearsInWhichLicensesExpiresTableTextBlock_lbl" xml:lang="en-US">Years in which Licenses Expires [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_YearsInWhichLicensesExpiresTableTextBlock_lbl" xml:lang="en-US">Years in which each of our licenses expires</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_YearsInWhichLicensesExpiresTableTextBlock_lbl" xml:lang="en-US">Years in which licenses expires.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_YearsInWhichLicensesExpiresAbstract" xlink:label="siri_YearsInWhichLicensesExpiresAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_YearsInWhichLicensesExpiresAbstract" xlink:to="siri_YearsInWhichLicensesExpiresAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_YearsInWhichLicensesExpiresAbstract_lbl" xml:lang="en-US">Years in Which Licenses Expires [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_YearsInWhichLicensesExpiresAbstract_lbl" xml:lang="en-US">Years in which licenses expires</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_YearsInWhichLicensesExpiresAbstract_lbl" xml:lang="en-US">Years in which licenses expires.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IntangibleAssetsTextualAbstract" xlink:label="siri_IntangibleAssetsTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IntangibleAssetsTextualAbstract" xlink:to="siri_IntangibleAssetsTextualAbstract_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IntangibleAssetsTextualAbstract_lbl" xml:lang="en-US">Intangible Assets (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IntangibleAssetsTextualAbstract_lbl" xml:lang="en-US">Intangible Assets.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense" xlink:to="lab_FiniteLivedIntangibleAssetsAmortizationExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsAmortizationExpense" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsAmortizationExpense" xml:lang="en-US">Amortization expense</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="lab_ScheduleOfIndefiniteLivedIntangibleAssetsByMajorClassTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfIndefiniteLivedIntangibleAssetsByMajorClassTable" xml:lang="en-US">Schedule of Indefinite-lived Intangible Assets by Major Class [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xml:lang="en-US">Indefinite-lived Intangible Assets by Major Class [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="lab_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xml:lang="en-US">Indefinite-lived Intangible Assets, Major Class Name [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TrademarksMember" xlink:label="us-gaap_TrademarksMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TrademarksMember" xlink:to="lab_TrademarksMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_TrademarksMember" xml:lang="en-US">Trademarks [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:to="lab_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xml:lang="en-US">Indefinite-lived Intangible Assets by Major Class [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:to="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwill" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xml:lang="en-US">Indefinite-Lived Intangible Assets (Excluding Goodwill)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xml:lang="en-US">Indefinite-Lived Intangible Assets (Excluding Goodwill), Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xml:lang="en-US">Net carrying value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsByMajorClassTable" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsByMajorClassTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="lab_ScheduleOfFiniteLivedIntangibleAssetsByMajorClassTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfFiniteLivedIntangibleAssetsByMajorClassTable" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets by Major Class [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="lab_FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsByMajorClassAxis" xml:lang="en-US">Finite-Lived Intangible Assets by Major Class [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="lab_FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsMajorClassNameDomain" xml:lang="en-US">Finite-Lived Intangible Assets, Major Class Name [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="us-gaap_DevelopedTechnologyRightsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DevelopedTechnologyRightsMember" xlink:to="lab_DevelopedTechnologyRightsMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DevelopedTechnologyRightsMember" xml:lang="en-US">Developed Technology Rights [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DevelopedTechnologyRightsMember" xml:lang="en-US">Developed technology [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LicensingAgreementsMember" xlink:label="us-gaap_LicensingAgreementsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LicensingAgreementsMember" xlink:to="lab_LicensingAgreementsMember" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="lab_FiniteLivedIntangibleAssetsLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsLineItems" xml:lang="en-US">Finite-Lived Intangible Assets [Line Items]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LibertyMediaMember" xlink:label="siri_LibertyMediaMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LibertyMediaMember" xlink:to="siri_LibertyMediaMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LibertyMediaMember_lbl" xml:lang="en-US">Liberty Media [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_LibertyMediaMember_lbl" xml:lang="en-US">Liberty Media [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LibertyMediaMember_lbl" xml:lang="en-US">Liberty Party.</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty" xlink:to="lab_RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AmericanHondaMember" xlink:label="siri_AmericanHondaMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AmericanHondaMember" xlink:to="siri_AmericanHondaMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AmericanHondaMember_lbl" xml:lang="en-US">American Honda [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AmericanHondaMember_lbl" xml:lang="en-US">American Honda.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AmericanHondaMember_lbl" xml:lang="en-US">American Honda [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RelatedPartyTransactionsTextualAbstract" xlink:label="siri_RelatedPartyTransactionsTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RelatedPartyTransactionsTextualAbstract" xlink:to="siri_RelatedPartyTransactionsTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RelatedPartyTransactionsTextualAbstract_lbl" xml:lang="en-US">Related Party Transactions (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RelatedPartyTransactionsTextualAbstract_lbl" xml:lang="en-US">Related Party Transactions (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RelatedPartyTransactionsTextualAbstract_lbl" xml:lang="en-US">Related party transactions.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RoyaltyPercentageInGrossRevenueMinimum" xlink:label="siri_RoyaltyPercentageInGrossRevenueMinimum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RoyaltyPercentageInGrossRevenueMinimum" xlink:to="siri_RoyaltyPercentageInGrossRevenueMinimum_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RoyaltyPercentageInGrossRevenueMinimum_lbl" xml:lang="en-US">Royalty Percentage in Gross Revenue Minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RoyaltyPercentageInGrossRevenueMinimum_lbl" xml:lang="en-US">Royalty percentage of gross revenue minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RoyaltyPercentageInGrossRevenueMinimum_lbl" xml:lang="en-US">Royalty percentage in gross revenue minimum.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty" xlink:label="siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty" xlink:to="siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty_lbl" xml:lang="en-US">Royalty for All Subscriber Fees Earned by Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty_lbl" xml:lang="en-US">Royalty for all subscriber fees earned by related party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RoyaltyForAllSubscriberFeesEarnedByRelatedParty_lbl" xml:lang="en-US">Royalty for all subscriber fees earned by related party.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty" xlink:label="siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty" xlink:to="siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty_lbl" xml:lang="en-US">Estimated Fair Value of Deferred Revenue from Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty_lbl" xml:lang="en-US">Estimated fair value of deferred revenue from XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EstimatedFairValueOfDeferredRevenueFromRelatedParty_lbl" xml:lang="en-US">Estimated fair value of deferred revenue from related party.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="lab_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xml:lang="en-US">Schedule of Related Party Transactions, by Related Party [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_RelatedPartyTransactionsByRelatedPartyAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionsByRelatedPartyAxis" xml:lang="en-US">Related Party Transactions, by Related Party [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="us-gaap_RelatedPartyDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="lab_RelatedPartyDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyDomain" xml:lang="en-US">Related Party [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="us-gaap_RelatedPartyTransactionLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="lab_RelatedPartyTransactionLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionLineItems" xml:lang="en-US">Related Party Transaction [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="us-gaap_DebtInstrumentTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTable" xlink:to="lab_DebtInstrumentTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentTable" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="us-gaap_LongtermDebtTypeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeAxis" xlink:to="lab_LongtermDebtTypeAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongtermDebtTypeAxis" xml:lang="en-US">Long-term Debt, Type [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="us-gaap_LongtermDebtTypeDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeDomain" xlink:to="lab_LongtermDebtTypeDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongtermDebtTypeDomain" xml:lang="en-US">Long-term Debt, Type [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="us-gaap_DebtInstrumentLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentLineItems" xlink:to="lab_DebtInstrumentLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentLineItems" xml:lang="en-US">Debt Instrument [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:label="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:to="lab_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts" xlink:label="siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts" xlink:to="siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts_lbl" xml:lang="en-US">Amortization of Costs Related to Share Lending Arrangement and Other Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts_lbl" xml:lang="en-US">Amortization of costs related to share-lending arrangement and other issuance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AmortizationOfCostsRelatedToShareLendingArrangementAndOtherIssuanceCosts_lbl" xml:lang="en-US">Amortization of costs related to share-lending arrangement and other issuance costs.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IntangibleAssetsGrossExcludingGoodwill" xlink:label="siri_IntangibleAssetsGrossExcludingGoodwill" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IntangibleAssetsGrossExcludingGoodwill" xlink:to="siri_IntangibleAssetsGrossExcludingGoodwill_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IntangibleAssetsGrossExcludingGoodwill_lbl" xml:lang="en-US">Intangible Assets Gross Excluding Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IntangibleAssetsGrossExcludingGoodwill_lbl" xml:lang="en-US">Total intangible assets, Gross carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IntangibleAssetsGrossExcludingGoodwill_lbl" xml:lang="en-US">Intangible assets gross excluding goodwill.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:label="us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:to="lab_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill" xlink:label="siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill" xlink:to="siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill_lbl" xml:lang="en-US">Indefinite Lived Intangible Assets Gross Excluding Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill_lbl" xml:lang="en-US">Gross carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IndefiniteLivedIntangibleAssetsGrossExcludingGoodwill_lbl" xml:lang="en-US">Indefinite lived intangible assets gross excluding goodwill.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" xlink:label="us-gaap_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" xlink:to="lab_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" xml:lang="en-US">Business Acquisition, Purchase Price Allocation, Intangible Assets Not Amortizable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" xml:lang="en-US">Business Acquisition, Purchase Price Allocation, Intangible Assets Not Amortizable, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizable" xml:lang="en-US">Purchase price related to merger</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" xlink:to="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAbstract" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAbstract" xlink:to="lab_FiniteLivedIntangibleAssetsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsAbstract" xml:lang="en-US">Finite-Lived Intangible Assets [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsAbstract" xml:lang="en-US">Summary of definite life intangible assets</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusFmOneSatelliteMember" xlink:label="siri_SiriusFmOneSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusFmOneSatelliteMember" xlink:to="siri_SiriusFmOneSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusFmOneSatelliteMember_lbl" xml:lang="en-US">Sirius Fm One Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusFmOneSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-1 satellite.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusFmOneSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-1 satellite [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusFmTwoSatelliteMember" xlink:label="siri_SiriusFmTwoSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusFmTwoSatelliteMember" xlink:to="siri_SiriusFmTwoSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusFmTwoSatelliteMember_lbl" xml:lang="en-US">Sirius Fm Two Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusFmTwoSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-2 satellite.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusFmTwoSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-2 satellite [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusFmThreeSatelliteMember" xlink:label="siri_SiriusFmThreeSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusFmThreeSatelliteMember" xlink:to="siri_SiriusFmThreeSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusFmThreeSatelliteMember_lbl" xml:lang="en-US">Sirius Fm Three satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusFmThreeSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-3 satellite.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusFmThreeSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-3 satellite [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusFmFiveSatelliteMember" xlink:label="siri_SiriusFmFiveSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusFmFiveSatelliteMember" xlink:to="siri_SiriusFmFiveSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusFmFiveSatelliteMember_lbl" xml:lang="en-US">Sirius Fm Five satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusFmFiveSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-5 satellite.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusFmFiveSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-5 satellite [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_XmOneSatelliteMember" xlink:label="siri_XmOneSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_XmOneSatelliteMember" xlink:to="siri_XmOneSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_XmOneSatelliteMember_lbl" xml:lang="en-US">XM One satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_XmOneSatelliteMember_lbl" xml:lang="en-US">XM-1 satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_XmOneSatelliteMember_lbl" xml:lang="en-US">XM-1 satellite.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_XmTwoSatelliteMember" xlink:label="siri_XmTwoSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_XmTwoSatelliteMember" xlink:to="siri_XmTwoSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_XmTwoSatelliteMember_lbl" xml:lang="en-US">XM Two satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_XmTwoSatelliteMember_lbl" xml:lang="en-US">XM-2 satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_XmTwoSatelliteMember_lbl" xml:lang="en-US">XM-2 satellite.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_XmFourSatelliteMember" xlink:label="siri_XmFourSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_XmFourSatelliteMember" xlink:to="siri_XmFourSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_XmFourSatelliteMember_lbl" xml:lang="en-US">XM Four satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_XmFourSatelliteMember_lbl" xml:lang="en-US">XM-4 satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_XmFourSatelliteMember_lbl" xml:lang="en-US">XM-4 satellite.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_XmFiveSatelliteMember" xlink:label="siri_XmFiveSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_XmFiveSatelliteMember" xlink:to="siri_XmFiveSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_XmFiveSatelliteMember_lbl" xml:lang="en-US">XM Five satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_XmFiveSatelliteMember_lbl" xml:lang="en-US">XM-5 satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_XmFiveSatelliteMember_lbl" xml:lang="en-US">XM-5 satellite.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfRelatedPartyLongTermDebtAbstract" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfRelatedPartyLongTermDebtAbstract" xlink:to="siri_SummaryOfRelatedPartyLongTermDebtAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtAbstract_lbl" xml:lang="en-US">Summary of Related party long term debt [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtAbstract_lbl" xml:lang="en-US">Summary of Related party long term debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtAbstract_lbl" xml:lang="en-US">Summary of related party long term debt.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueFromRelatedPartyOneAbstract" xlink:label="siri_RevenueFromRelatedPartyOneAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueFromRelatedPartyOneAbstract" xlink:to="siri_RevenueFromRelatedPartyOneAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueFromRelatedPartyOneAbstract_lbl" xml:lang="en-US">Revenue from Related Party One [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueFromRelatedPartyOneAbstract_lbl" xml:lang="en-US">Revenue from SIRIUS Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueFromRelatedPartyOneAbstract_lbl" xml:lang="en-US">Revenue from SIRIUS Canada.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RelatedPartyTransactionsAxis" xlink:label="siri_RelatedPartyTransactionsAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RelatedPartyTransactionsAxis" xlink:to="siri_RelatedPartyTransactionsAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RelatedPartyTransactionsAxis_lbl" xml:lang="en-US">Related Party Transactions [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RelatedPartyTransactionsAxis_lbl" xml:lang="en-US">Related Party Transactions.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RelatedPartyTransactionsDomain" xlink:label="siri_RelatedPartyTransactionsDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RelatedPartyTransactionsDomain" xlink:to="siri_RelatedPartyTransactionsDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RelatedPartyTransactionsDomain_lbl" xml:lang="en-US">Related Party Transactions [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RelatedPartyTransactionsDomain_lbl" xml:lang="en-US">Related Party Transactions [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RelatedPartyTransactionsDomain_lbl" xml:lang="en-US">Related party transactions.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueFromRelatedPartyTwoAbstract" xlink:label="siri_RevenueFromRelatedPartyTwoAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueFromRelatedPartyTwoAbstract" xlink:to="siri_RevenueFromRelatedPartyTwoAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueFromRelatedPartyTwoAbstract_lbl" xml:lang="en-US">Revenue from Related Party Two [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueFromRelatedPartyTwoAbstract_lbl" xml:lang="en-US">Revenue from XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueFromRelatedPartyTwoAbstract_lbl" xml:lang="en-US">Revenue from XM Canada.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract" xlink:label="siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract" xlink:to="siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" xml:lang="en-US">Revenue from Related Party Three and Related Party Four [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" xml:lang="en-US">Revenue from General Motors Company and American Honda</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueFromRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" xml:lang="en-US">Revenue from general motors and American Honda.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_GeneralMotorsCompanyMember" xlink:label="siri_GeneralMotorsCompanyMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_GeneralMotorsCompanyMember" xlink:to="siri_GeneralMotorsCompanyMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_GeneralMotorsCompanyMember_lbl" xml:lang="en-US">General Motors Company [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_GeneralMotorsCompanyMember_lbl" xml:lang="en-US">GM [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_GeneralMotorsCompanyMember_lbl" xml:lang="en-US">General Motors Company.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_GeneralMotorsCompanyAndAmericanHondaMember" xlink:label="siri_GeneralMotorsCompanyAndAmericanHondaMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_GeneralMotorsCompanyAndAmericanHondaMember" xlink:to="siri_GeneralMotorsCompanyAndAmericanHondaMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_GeneralMotorsCompanyAndAmericanHondaMember_lbl" xml:lang="en-US">General Motors Company and American Honda [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_GeneralMotorsCompanyAndAmericanHondaMember_lbl" xml:lang="en-US">General Motors Company and American Honda [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_GeneralMotorsCompanyAndAmericanHondaMember_lbl" xml:lang="en-US">General Motors Company and American Honda.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract" xlink:label="siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract" xlink:to="siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" xml:lang="en-US">Expenses Incurred with Related Party Three and Related Party Four [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" xml:lang="en-US">Expenses incurred with General Motors Company and American Honda</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ExpensesIncurredWithRelatedPartyThreeAndRelatedPartyFourAbstract_lbl" xml:lang="en-US">Expenses incurred with related party three and related party four.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueShareAndRoyaltiesMember" xlink:label="siri_RevenueShareAndRoyaltiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueShareAndRoyaltiesMember" xlink:to="siri_RevenueShareAndRoyaltiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueShareAndRoyaltiesMember_lbl" xml:lang="en-US">Revenue share and royalties [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueShareAndRoyaltiesMember_lbl" xml:lang="en-US">Revenue share and royalties [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueShareAndRoyaltiesMember_lbl" xml:lang="en-US">Revenue share and royalties.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SubscriberAcquisitionCostsMember" xlink:label="siri_SubscriberAcquisitionCostsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubscriberAcquisitionCostsMember" xlink:to="siri_SubscriberAcquisitionCostsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubscriberAcquisitionCostsMember_lbl" xml:lang="en-US">Subscriber acquisition costs [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SubscriberAcquisitionCostsMember_lbl" xml:lang="en-US">Subscriber acquisition costs [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberAcquisitionCostsMember_lbl" xml:lang="en-US">Subscriber acquisition costs.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CustomerServiceAndBillingMember" xlink:label="siri_CustomerServiceAndBillingMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CustomerServiceAndBillingMember" xlink:to="siri_CustomerServiceAndBillingMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CustomerServiceAndBillingMember_lbl" xml:lang="en-US">Customer service and billing [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CustomerServiceAndBillingMember_lbl" xml:lang="en-US">Customer service and billing [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CustomerServiceAndBillingMember_lbl" xml:lang="en-US">Customer service and billing.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember" xlink:label="us-gaap_SellingAndMarketingExpenseMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingAndMarketingExpenseMember" xlink:to="lab_SellingAndMarketingExpenseMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SellingAndMarketingExpenseMember" xml:lang="en-US">Selling and Marketing Expense [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SellingAndMarketingExpenseMember" xml:lang="en-US">Sales and marketing [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="us-gaap_InterestExpenseMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseMember" xlink:to="lab_InterestExpenseMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InterestExpenseMember" xml:lang="en-US">Interest Expense [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestExpenseMember" xml:lang="en-US">Interest expense, net of amounts capitalized [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition" xlink:label="siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition" xlink:to="siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition_lbl" xml:lang="en-US">Agreement between company and Related Party Five regarding acquisition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition_lbl" xml:lang="en-US">Percentage ownership limit of outstanding common stock by Liberty Media per the Investment Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AgreementBetweenCompanyAndRelatedPartyFiveRegardingAcquisition_lbl" xml:lang="en-US">Agreement between company and Liberty Media regarding acquisition.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CostsThatHaveBeenOrWillBeReimbursed" xlink:label="siri_CostsThatHaveBeenOrWillBeReimbursed" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CostsThatHaveBeenOrWillBeReimbursed" xlink:to="siri_CostsThatHaveBeenOrWillBeReimbursed_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CostsThatHaveBeenOrWillBeReimbursed_lbl" xml:lang="en-US">Costs that have been or will be reimbursed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CostsThatHaveBeenOrWillBeReimbursed_lbl" xml:lang="en-US">Costs that have been or will be reimbursed by Sirius Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CostsThatHaveBeenOrWillBeReimbursed_lbl" xml:lang="en-US">Costs that have been or will be reimbursed.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InitialAgreementPeriod" xlink:label="siri_InitialAgreementPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InitialAgreementPeriod" xlink:to="siri_InitialAgreementPeriod_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InitialAgreementPeriod_lbl" xml:lang="en-US">Initial agreement period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InitialAgreementPeriod_lbl" xml:lang="en-US">Initial agreement period with XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InitialAgreementPeriod_lbl" xml:lang="en-US">Initial agreement period with XM Canada.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption" xlink:label="siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption" xlink:to="siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption_lbl" xml:lang="en-US">Number of additional years to extend the agreements under unilateral option</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption_lbl" xml:lang="en-US">Number of additional years XM Canada has to extend the agreements under unilateral option</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfAdditionalYearsToExtendAgreementsUnderUnilateralOption_lbl" xml:lang="en-US">Number of additional years to extend the agreements under unilateral option.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket" xlink:label="siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket" xlink:to="siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" xml:lang="en-US">Obligation of related party towards company for the rights to broadcast and market</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" xml:lang="en-US">Obligation of XM Canada to pay us for the rights to broadcast and market National Hockey League games</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" xml:lang="en-US">Obligation of related party towards company for the rights to broadcast and market.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket" xlink:label="siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket" xlink:to="siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" xml:lang="en-US">Term of Obligation of related party towards company for the rights to broadcast and market</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" xml:lang="en-US">Term of Obligation of XM Canada for the rights to broadcast and market the National Hockey League</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_TermOfObligationOfRelatedPartyTowardsCompanyForRightsToBroadcastAndMarket_lbl" xml:lang="en-US">Term of obligation of related party towards company for the rights to broadcast and market.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:to="lab_LineOfCreditFacilityMaximumBorrowingCapacity" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LineOfCreditFacilityMaximumBorrowingCapacity" xml:lang="en-US">Line of Credit Facility, Maximum Borrowing Capacity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LineOfCreditFacilityMaximumBorrowingCapacity" xml:lang="en-US">Credit facility extended to XM Canada</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ValuationAllowanceOnCreditFacility" xlink:label="siri_ValuationAllowanceOnCreditFacility" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ValuationAllowanceOnCreditFacility" xlink:to="siri_ValuationAllowanceOnCreditFacility_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ValuationAllowanceOnCreditFacility_lbl" xml:lang="en-US">Valuation Allowance on Credit Facility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ValuationAllowanceOnCreditFacility_lbl" xml:lang="en-US">Valuation allowance related to absorption of our share of net loss from our investment in XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ValuationAllowanceOnCreditFacility_lbl" xml:lang="en-US">Valuation allowance on credit facility.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DeferredProgrammingCostsAndAccruedInterestRelated" xlink:label="siri_DeferredProgrammingCostsAndAccruedInterestRelated" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DeferredProgrammingCostsAndAccruedInterestRelated" xlink:to="siri_DeferredProgrammingCostsAndAccruedInterestRelated_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DeferredProgrammingCostsAndAccruedInterestRelated_lbl" xml:lang="en-US">Deferred Programming Costs and Accrued Interest Related</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DeferredProgrammingCostsAndAccruedInterestRelated_lbl" xml:lang="en-US">Deferred programming costs and accrued interest attributable to Related party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DeferredProgrammingCostsAndAccruedInterestRelated_lbl" xml:lang="en-US">Deferred programming costs and accrued interest related.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsAbstract" xlink:label="us-gaap_LongTermDebtAndCapitalLeaseObligationsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtAndCapitalLeaseObligationsAbstract" xlink:to="lab_LongTermDebtAndCapitalLeaseObligationsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongTermDebtAndCapitalLeaseObligationsAbstract" xml:lang="en-US">Long-term Debt and Capital Lease Obligations [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligationsAbstract" xml:lang="en-US">Debt</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LongTermDebtExcludingRelatedPartyDebt" xlink:label="siri_LongTermDebtExcludingRelatedPartyDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LongTermDebtExcludingRelatedPartyDebt" xlink:to="siri_LongTermDebtExcludingRelatedPartyDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LongTermDebtExcludingRelatedPartyDebt_lbl" xml:lang="en-US">Long-term Debt Excluding Related Party Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="siri_LongTermDebtExcludingRelatedPartyDebt_lbl" xml:lang="en-US">Long-term debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="siri_LongTermDebtExcludingRelatedPartyDebt_lbl" xml:lang="en-US">Total long-term, excluding related party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_LongTermDebtExcludingRelatedPartyDebt_lbl" xml:lang="en-US">Total long-term, excluding related party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LongTermDebtExcludingRelatedPartyDebt_lbl" xml:lang="en-US">Long term debt excluding related party debt.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherLongtermDebtCurrentAndNoncurrentAbstract" xlink:label="us-gaap_OtherLongtermDebtCurrentAndNoncurrentAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLongtermDebtCurrentAndNoncurrentAbstract" xlink:to="lab_OtherLongtermDebtCurrentAndNoncurrentAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherLongtermDebtCurrentAndNoncurrentAbstract" xml:lang="en-US">Other Long-term Debt [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherLongtermDebtCurrentAndNoncurrentAbstract" xml:lang="en-US">Other debt:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeaseObligations" xlink:label="us-gaap_CapitalLeaseObligations" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalLeaseObligations" xlink:to="lab_CapitalLeaseObligations" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CapitalLeaseObligations" xml:lang="en-US">Capital Lease Obligations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CapitalLeaseObligations" xml:lang="en-US">Capital Lease Obligations, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CapitalLeaseObligations" xml:lang="en-US">Capital leases</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:to="lab_LongTermDebtAndCapitalLeaseObligationsCurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongTermDebtAndCapitalLeaseObligationsCurrent" xml:lang="en-US">Long-term Debt and Capital Lease Obligations, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligationsCurrent" xml:lang="en-US">Long-term Debt and Capital Lease Obligations, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligationsCurrent" xml:lang="en-US">Less: total current maturities non-related party</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DebtTextualAbstract" xlink:label="siri_DebtTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DebtTextualAbstract" xlink:to="siri_DebtTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DebtTextualAbstract_lbl" xml:lang="en-US">Debt (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DebtTextualAbstract_lbl" xml:lang="en-US">Debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DebtTextualAbstract_lbl" xml:lang="en-US">Debt (Textual) [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DueDateOfInterestOnNote" xlink:label="siri_DueDateOfInterestOnNote" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DueDateOfInterestOnNote" xlink:to="siri_DueDateOfInterestOnNote_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DueDateOfInterestOnNote_lbl" xml:lang="en-US">Due Date of Interest on Note</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DueDateOfInterestOnNote_lbl" xml:lang="en-US">Due date of interest on note</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DueDateOfInterestOnNote_lbl" xml:lang="en-US">Due date of interest on note.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_MinimumPriceForPurchaseOfNote" xlink:label="siri_MinimumPriceForPurchaseOfNote" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_MinimumPriceForPurchaseOfNote" xlink:to="siri_MinimumPriceForPurchaseOfNote_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_MinimumPriceForPurchaseOfNote_lbl" xml:lang="en-US">Minimum Price for Purchase of Note</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_MinimumPriceForPurchaseOfNote_lbl" xml:lang="en-US">Minimum purchase price for 3.25% Notes in 2011</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_MinimumPriceForPurchaseOfNote_lbl" xml:lang="en-US">Minimum price for purchase of note.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_MaximumPriceForPurchaseOfNote" xlink:label="siri_MaximumPriceForPurchaseOfNote" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_MaximumPriceForPurchaseOfNote" xlink:to="siri_MaximumPriceForPurchaseOfNote_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_MaximumPriceForPurchaseOfNote_lbl" xml:lang="en-US">Maximum Price for Purchase of Note</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_MaximumPriceForPurchaseOfNote_lbl" xml:lang="en-US">Maximum purchase price for 3.25% Notes in 2011</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_MaximumPriceForPurchaseOfNote_lbl" xml:lang="en-US">Maximum price for purchase of note.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="us-gaap_DebtInstrumentFaceAmount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFaceAmount" xlink:to="lab_DebtInstrumentFaceAmount" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DebtInstrumentFaceAmount" xml:lang="en-US">Total principal debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentFaceAmount" xml:lang="en-US">Debt Instrument, Face Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentFaceAmount" xml:lang="en-US">Aggregate principal amount issued</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="us-gaap_DebtInstrumentMaturityDate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="lab_DebtInstrumentMaturityDate" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentMaturityDate" xml:lang="en-US">Debt Instrument, Maturity Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentMaturityDate" xml:lang="en-US">Maturity date of notes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="us-gaap_DebtInstrumentCarryingAmount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentCarryingAmount" xlink:to="lab_DebtInstrumentCarryingAmount" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentCarryingAmount" xml:lang="en-US">Debt Instrument Carrying Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DebtInstrumentCarryingAmount" xml:lang="en-US">Aggregate principal amount purchased of notes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DebtInstrumentCarryingAmount" xml:lang="en-US">Related party long-term debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentCarryingAmount" xml:lang="en-US">Debt carrying value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentUnamortizedDiscount" xlink:to="lab_DebtInstrumentUnamortizedDiscount" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentUnamortizedDiscount" xml:lang="en-US">Debt Instrument, Unamortized Discount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DebtInstrumentUnamortizedDiscount" xml:lang="en-US">Less: discounts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DebtInstrumentUnamortizedDiscount" xml:lang="en-US">Less: discounts</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentUnamortizedDiscount" xml:lang="en-US">Debt discount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US">Fair value of options granted to third parties other than non-employee members of our board of directors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US">Fair value of options granted to employees</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US">Risk-free interest rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xml:lang="en-US">Expected life of options - years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US">Expected stock price volatility</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xml:lang="en-US">Expected dividend yield</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Outstanding Shares, Ending</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Outstanding Shares, Beginning</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Outstanding, Weighted Average Exercise Price, Ending</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Outstanding, Weighted Average Exercise Price, Beginning</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US">Forfeited, cancelled or expired, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US">Forfeited, cancelled or expired, Shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Forfeited, cancelled or expired, Weighted Average Exercise Price</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US">Outstanding, Aggregate Intrinsic Value, Ending</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US">Exercisable Shares, Ending</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US">Exercisable, Sep 30, 2011</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">Exercisable, Weighted Average Exercise Price</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm" xlink:to="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share Based Payment Award Option Exercisable Weighted Average Remaining Contractual Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm_lbl" xml:lang="en-US">Exercisable, Weighted Average Remaining Contractual Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableWeightedAverageRemainingContractualTerm_lbl" xml:lang="en-US">Share based compensation arrangement by share based payment award option exercisable weighted average remaining contractual term.</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableIntrinsicValue" xlink:to="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableIntrinsicValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableIntrinsicValue_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share Based Payment Award Option Exercisable Intrinsic Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableIntrinsicValue_lbl" xml:lang="en-US">Exercisable, Aggregate Intrinsic Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisableIntrinsicValue_lbl" xml:lang="en-US">Share based compensation arrangement by share based payment award option exercisable intrinsic value.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Nonvested, Shares, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Nonvested, Shares, Beginning Balance</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US">Nonvested, Weighted Average Grant Date Fair Value, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US">Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Restricted stock unit granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Granted, Shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted average grant date fair value of restricted stock units granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Granted, Weighted Average Grant Date Fair Value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Forfeited, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Forfeited, Shares</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue" xlink:to="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award Equity Instruments Other than Option Forfeited in Period Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US">Forfeited, Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US">Share based compensation arrangement by share based payment award equity instruments other than option forfeited in period weighted average grant date fair value.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_BenefitsPlansTextualAbstract" xlink:label="siri_BenefitsPlansTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_BenefitsPlansTextualAbstract" xlink:to="siri_BenefitsPlansTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_BenefitsPlansTextualAbstract_lbl" xml:lang="en-US">Benefits Plans (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_BenefitsPlansTextualAbstract_lbl" xml:lang="en-US">Benefits Plans.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted average grant date fair value of options granted</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xml:lang="en-US">Total Intrinsic value of stock options exercised</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares" xlink:label="siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares" xlink:to="siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares_lbl" xml:lang="en-US">Employee Voluntary Contributions to be Matched in the Form of Common Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares_lbl" xml:lang="en-US">Percentage limit of an employee's pre-tax salary the Company will match in the form of shares of common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EmployeeVoluntaryContributionsToBeMatchedInFormOfCommonShares_lbl" xml:lang="en-US">Employee voluntary contributions to be matched in the form of common shares.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment" xlink:label="siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment" xlink:to="siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment_lbl" xml:lang="en-US">Vesting Percentage of Employer Contributions for Each Year of Employment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment_lbl" xml:lang="en-US">Vesting percentage of Employer contributions for each year of employment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_VestingPercentageOfEmployerContributionsForEachYearOfEmployment_lbl" xml:lang="en-US">Vesting percentage of Employer contributions for each year of employment</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusXmPlanMember" xlink:label="siri_SiriusXmPlanMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusXmPlanMember" xlink:to="siri_SiriusXmPlanMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusXmPlanMember_lbl" xml:lang="en-US">Sirius XM Plan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusXmPlanMember_lbl" xml:lang="en-US">Sirius XM Savings Plan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusXmPlanMember_lbl" xml:lang="en-US">Sirius XM Plan.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="us-gaap_EmployeeStockOptionMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOptionMember" xlink:to="lab_EmployeeStockOptionMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EmployeeStockOptionMember" xml:lang="en-US">Employee Stock Option [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RelatedPartyTransactionAbstract" xlink:label="siri_RelatedPartyTransactionAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RelatedPartyTransactionAbstract" xlink:to="siri_RelatedPartyTransactionAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RelatedPartyTransactionAbstract_lbl" xml:lang="en-US">Related Party Transaction [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RelatedPartyTransactionAbstract_lbl" xml:lang="en-US">Related Party Balances</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RelatedPartyTransactionAbstract_lbl" xml:lang="en-US">Related party transaction.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InterestCostAbstract" xlink:label="siri_InterestCostAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InterestCostAbstract" xlink:to="siri_InterestCostAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InterestCostAbstract_lbl" xml:lang="en-US">Interest Cost [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InterestCostAbstract_lbl" xml:lang="en-US">Interest Cost.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InterestCostAbstract_lbl" xml:lang="en-US">Interest Cost</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestCostsIncurred" xlink:label="us-gaap_InterestCostsIncurred" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestCostsIncurred" xlink:to="us-gaap_InterestCostsIncurred_lbl" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_FccLicenseExpirationYears" xlink:label="siri_FccLicenseExpirationYears" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_FccLicenseExpirationYears" xlink:to="siri_FccLicenseExpirationYears_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_FccLicenseExpirationYears_lbl" xml:lang="en-US">FCC License Expiration Years</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_FccLicenseExpirationYears_lbl" xml:lang="en-US">Year in which our FCC license expires</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_FccLicenseExpirationYears_lbl" xml:lang="en-US">FCC license expiration years.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RevenueRecognitionPolicyTextBlock" xml:lang="en-US">Revenue Recognition, Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RevenueRecognitionPolicyTextBlock" xml:lang="en-US">Revenue Recognition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="us-gaap_CustomerRelationshipsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CustomerRelationshipsMember" xlink:to="lab_CustomerRelationshipsMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CustomerRelationshipsMember" xml:lang="en-US">Customer Relationships [Member]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PatentedTechnologyMember" xlink:label="us-gaap_PatentedTechnologyMember" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LeaseAgreementsMember" xml:lang="en-US">Lease Agreements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LeaseAgreementsMember" xml:lang="en-US">Leasehold interests [Member]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DebtInstrumentConvertiblePrincipalAmount" xlink:to="siri_DebtInstrumentConvertiblePrincipalAmount_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DebtInstrumentConvertiblePrincipalAmount_lbl" xml:lang="en-US">Debt Instrument Convertible Principal Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DebtInstrumentConvertiblePrincipalAmount_lbl" xml:lang="en-US">Debt instrument convertible principal amount</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentConvertibleConversionRatio" xlink:to="lab_DebtInstrumentConvertibleConversionRatio" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentConvertibleConversionRatio" xml:lang="en-US">Debt Instrument, Convertible, Conversion Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentConvertibleConversionRatio" xml:lang="en-US">Number of Shares for each $1000 principal amount on conversion</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RestrictedStockAndRestrictedStockUnitsRsuMember" xlink:to="siri_RestrictedStockAndRestrictedStockUnitsRsuMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RestrictedStockAndRestrictedStockUnitsRsuMember_lbl" xml:lang="en-US">Restricted Stock and Restricted Stock Units RSU [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RestrictedStockAndRestrictedStockUnitsRsuMember_lbl" xml:lang="en-US">Restricted Stock and Restricted Stock Units RSU [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RestrictedStockAndRestrictedStockUnitsRsuMember_lbl" xml:lang="en-US">Restricted stock and restricted stock units RSU.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RestrictedStockUnitsRsuAndStockOptionsMember" xlink:label="siri_RestrictedStockUnitsRsuAndStockOptionsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RestrictedStockUnitsRsuAndStockOptionsMember" xlink:to="siri_RestrictedStockUnitsRsuAndStockOptionsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RestrictedStockUnitsRsuAndStockOptionsMember_lbl" xml:lang="en-US">Restricted Stock Units RSU and Stock Options [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RestrictedStockUnitsRsuAndStockOptionsMember_lbl" xml:lang="en-US">Restricted Stock Units RSU and Stock Options [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RestrictedStockUnitsRsuAndStockOptionsMember_lbl" xml:lang="en-US">Restricted stock units RSU and stock options.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Vested restricted stock, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Vested restricted stock, Shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Vested restricted stock, weighted average grant date fair value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Vested restricted stock, Weighted Average Grant Date Fair Value</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="lab_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:to="lab_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xml:lang="en-US">Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="lab_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xml:lang="en-US">Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="us-gaap_RestrictedStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockMember" xlink:to="lab_RestrictedStockMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RestrictedStockMember" xml:lang="en-US">Restricted Stock [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="us-gaap_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:to="lab_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xml:lang="en-US">Finite-Lived Intangible Assets, Weighted-Average Useful Life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xml:lang="en-US">Weighted average useful lives</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense" xlink:label="us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpense" xlink:to="lab_FiniteLivedIntangibleAssetsFutureAmortizationExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsFutureAmortizationExpense" xml:lang="en-US">Finite-Lived Intangible Assets, Future Amortization Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_FiniteLivedIntangibleAssetsFutureAmortizationExpense" xml:lang="en-US">Total definite life intangibles assets, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearOne" xlink:label="us-gaap_FutureAmortizationExpenseYearOne" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FutureAmortizationExpenseYearOne" xlink:to="lab_FutureAmortizationExpenseYearOne" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FutureAmortizationExpenseYearOne" xml:lang="en-US">Future Amortization Expense, Year One</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FutureAmortizationExpenseYearOne" xml:lang="en-US">2012</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearTwo" xlink:label="us-gaap_FutureAmortizationExpenseYearTwo" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FutureAmortizationExpenseYearTwo" xlink:to="lab_FutureAmortizationExpenseYearTwo" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FutureAmortizationExpenseYearTwo" xml:lang="en-US">Future Amortization Expense, Year Two</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FutureAmortizationExpenseYearTwo" xml:lang="en-US">2013</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearThree" xlink:label="us-gaap_FutureAmortizationExpenseYearThree" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FutureAmortizationExpenseYearThree" xlink:to="lab_FutureAmortizationExpenseYearThree" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FutureAmortizationExpenseYearThree" xml:lang="en-US">Future Amortization Expense, Year Three</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FutureAmortizationExpenseYearThree" xml:lang="en-US">2014</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearFour" xlink:label="us-gaap_FutureAmortizationExpenseYearFour" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FutureAmortizationExpenseYearFour" xlink:to="lab_FutureAmortizationExpenseYearFour" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FutureAmortizationExpenseYearFour" xml:lang="en-US">Future Amortization Expense, Year Four</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FutureAmortizationExpenseYearFour" xml:lang="en-US">2015</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseYearFive" xlink:label="us-gaap_FutureAmortizationExpenseYearFive" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FutureAmortizationExpenseYearFive" xlink:to="lab_FutureAmortizationExpenseYearFive" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FutureAmortizationExpenseYearFive" xml:lang="en-US">Future Amortization Expense, Year Five</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FutureAmortizationExpenseYearFive" xml:lang="en-US">2016</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareReconciliationAbstract" xlink:label="us-gaap_EarningsPerShareReconciliationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareReconciliationAbstract" xlink:to="us-gaap_EarningsPerShareReconciliationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareReconciliationAbstract_lbl" xml:lang="en-US">Earnings Per Share Reconciliation [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EarningsPerShareReconciliationAbstract_lbl" xml:lang="en-US">Earnings per Share anti diluted</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US">Commitments and Contingencies</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US">Commitments and contingencies (Note 17)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xml:lang="en-US">Debt Instrument, Convertible, Conversion Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xml:lang="en-US">Conversion price per share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" />
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1" xlink:to="lab_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1" xml:lang="en-US">Outstanding, Weighted Average Remaining Contractual Term, Ending</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1" xml:lang="en-US">Outstanding, Weighted Average Remaining Contractual Term, Ending</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestPaidAbstract" xlink:label="us-gaap_InterestPaidAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidAbstract" xlink:to="us-gaap_InterestPaidAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidAbstract_lbl" xml:lang="en-US">Interest Paid [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InterestPaidAbstract_lbl" xml:lang="en-US">Cash paid during the period for:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="lab_GoodwillAndIntangibleAssetsDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GoodwillAndIntangibleAssetsDisclosureAbstract" xml:lang="en-US">Goodwill and Intangible Assets [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillDisclosureTextBlock" xlink:label="us-gaap_GoodwillDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillDisclosureTextBlock" xlink:to="lab_GoodwillDisclosureTextBlock" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="us-gaap_DebtDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="lab_DebtDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtDisclosureAbstract" xml:lang="en-US">Debt [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityAbstract" xlink:label="us-gaap_EquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityAbstract" xlink:to="lab_EquityAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityAbstract" xml:lang="en-US">Stockholders' Equity [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="us-gaap_CompensationAndRetirementDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:to="lab_CompensationAndRetirementDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CompensationAndRetirementDisclosureAbstract" xml:lang="en-US">Benefits Plans [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="lab_UseOfEstimates" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UseOfEstimates" xml:lang="en-US">Use of Estimates, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_UseOfEstimates" xml:lang="en-US">Use of Estimates</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:to="lab_FairValueOfFinancialInstrumentsPolicy" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FairValueOfFinancialInstrumentsPolicy" xml:lang="en-US">Fair Value of Financial Instruments, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FairValueOfFinancialInstrumentsPolicy" xml:lang="en-US">Fair Value of Financial Instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfExpectedAmortizationExpenseTableTextBlock" xlink:label="us-gaap_ScheduleOfExpectedAmortizationExpenseTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfExpectedAmortizationExpenseTableTextBlock" xlink:to="lab_ScheduleOfExpectedAmortizationExpenseTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfExpectedAmortizationExpenseTableTextBlock" xml:lang="en-US">Schedule of Expected Amortization Expense [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfExpectedAmortizationExpenseTableTextBlock" xml:lang="en-US">Expected amortization expense for each of the fiscal years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="lab_PropertyPlantAndEquipmentDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US">Property, Plant and Equipment Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US">Property and Equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:to="lab_ScheduleOfDebtInstrumentsTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfDebtInstrumentsTextBlock" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfDebtInstrumentsTextBlock" xml:lang="en-US">Debt</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:to="lab_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xml:lang="en-US">Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xml:lang="en-US">Fair value of options granted to employees</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:to="lab_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xml:lang="en-US">Stock options activity under share-based payment plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xml:lang="en-US">Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:to="lab_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xml:lang="en-US">Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xml:lang="en-US">Summary of nonvested restricted stock and restricted stock unit activity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="lab_CommitmentsAndContingenciesDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommitmentsAndContingenciesDisclosureAbstract" xml:lang="en-US">Commitments and Contingencies [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="lab_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xml:lang="en-US">Business [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="us-gaap_RelatedPartyTransactionsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_RelatedPartyTransactionsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionsAbstract" xml:lang="en-US">Related Party Transactions [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IncreaseDecreaseInDueFromRelatedParty" xlink:label="siri_IncreaseDecreaseInDueFromRelatedParty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IncreaseDecreaseInDueFromRelatedParty" xlink:to="siri_IncreaseDecreaseInDueFromRelatedParty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IncreaseDecreaseInDueFromRelatedParty_lbl" xml:lang="en-US">Increase Decrease in Due from Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_IncreaseDecreaseInDueFromRelatedParty_lbl" xml:lang="en-US">Related party assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IncreaseDecreaseInDueFromRelatedParty_lbl" xml:lang="en-US">The aggregate net change during the reporting period in the amount due from the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IncreaseDecreaseInDueToRelatedParty" xlink:label="siri_IncreaseDecreaseInDueToRelatedParty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IncreaseDecreaseInDueToRelatedParty" xlink:to="siri_IncreaseDecreaseInDueToRelatedParty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IncreaseDecreaseInDueToRelatedParty_lbl" xml:lang="en-US">Increase Decrease in Due to Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IncreaseDecreaseInDueToRelatedParty_lbl" xml:lang="en-US">Related party liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IncreaseDecreaseInDueToRelatedParty_lbl" xml:lang="en-US">The net change during the reporting period in the aggregate amount of obligations to be paid to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management; an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GoodwillDisclosureTextBlock" xml:lang="en-US">Goodwill Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_GoodwillDisclosureTextBlock" xml:lang="en-US">Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Long-term Debt and Capital Lease Obligations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Long-term Debt and Capital Lease Obligations, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Total long-term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Total long-term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Long-term debt</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfIntangibleAssetsTableTextBlock" xlink:label="siri_SummaryOfIntangibleAssetsTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfIntangibleAssetsTableTextBlock" xlink:to="siri_SummaryOfIntangibleAssetsTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SummaryOfIntangibleAssetsTableTextBlock_lbl" xml:lang="en-US">Summary of Intangible Assets [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SummaryOfIntangibleAssetsTableTextBlock_lbl" xml:lang="en-US">Summary of intangible assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SummaryOfIntangibleAssetsTableTextBlock_lbl" xml:lang="en-US">Summary of Intangible Assets.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive" xlink:label="siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive" xlink:to="siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive_lbl" xml:lang="en-US">Accrual Related to Contingent Performance for Subsidiaries Five</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive_lbl" xml:lang="en-US">Accrual related to contingent performance for XM-5</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AccrualRelatedToContingentPerformanceForSubsidiariesFive_lbl" xml:lang="en-US">Accrual related to contingent performance payments for XM-5.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum" xlink:to="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum_lbl" xml:lang="en-US">Employees Contribution of Their Pretax Earnings to Subsidiary Plan Minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum_lbl" xml:lang="en-US">Minimum of employee contributions of pre-tax eligible earnings to Company 401(k) Savings Plan</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMinimum_lbl" xml:lang="en-US">Employees contribution of their pretax earnings to subsidiary plan minimum.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum" xlink:to="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum_lbl" xml:lang="en-US">Employees Contribution of Their Pretax Earnings to Subsidiary Plan Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum_lbl" xml:lang="en-US">Limit of employee contributions of pre-tax eligible earnings to Company 401(k) Savings Plan</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EmployeesContributionOfTheirPretaxEarningsToSubsidiaryPlanMaximum_lbl" xml:lang="en-US">Employees contribution of their pretax earnings to subsidiary plan maximum.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AccrualRelatedToContingentPerformanceForSatelliteFive" xlink:label="siri_AccrualRelatedToContingentPerformanceForSatelliteFive" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AccrualRelatedToContingentPerformanceForSatelliteFive" xlink:to="siri_AccrualRelatedToContingentPerformanceForSatelliteFive_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AccrualRelatedToContingentPerformanceForSatelliteFive_lbl" xml:lang="en-US">Accrual Related to Contingent Performance for Satellite Five</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AccrualRelatedToContingentPerformanceForSatelliteFive_lbl" xml:lang="en-US">Accrual related to contingent performance for FM-5</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AccrualRelatedToContingentPerformanceForSatelliteFive_lbl" xml:lang="en-US">Accrual related to contingent performance payments for FM-5.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Average common shares outstanding-diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Average common shares outstanding-diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" xml:lang="en-US">Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" xml:lang="en-US">Summary of indefinite life intangible assets</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications" xlink:label="siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications" xlink:to="siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications_lbl" xml:lang="en-US">Additional Expenses if Subsidiaries Four Continues to Operative Above Base Line Specifications</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications_lbl" xml:lang="en-US">Additional payments required if XM-4 continues to operate above baseline specifications</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AdditionalExpensesIfSubsidiariesFourContinuesToOperativeAboveBaseLineSpecifications_lbl" xml:lang="en-US">Additional payments required if XM-4 continues to operate above baseline specifications during the five years beyond the satellite's fifteen-year design life.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RoyaltyPercentageInGrossRevenueMaximum" xlink:label="siri_RoyaltyPercentageInGrossRevenueMaximum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RoyaltyPercentageInGrossRevenueMaximum" xlink:to="siri_RoyaltyPercentageInGrossRevenueMaximum_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RoyaltyPercentageInGrossRevenueMaximum_lbl" xml:lang="en-US">Royalty Percentage in Gross Revenue Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RoyaltyPercentageInGrossRevenueMaximum_lbl" xml:lang="en-US">Royalty percentage of gross revenue maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RoyaltyPercentageInGrossRevenueMaximum_lbl" xml:lang="en-US">Royalty percentage in gross revenue maximum.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CommonStockLandedUnderFacilities" xlink:label="siri_CommonStockLandedUnderFacilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommonStockLandedUnderFacilities" xlink:to="siri_CommonStockLandedUnderFacilities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommonStockLandedUnderFacilities_lbl" xml:lang="en-US">Common Stock Landed under Facilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommonStockLandedUnderFacilities_lbl" xml:lang="en-US">Shares of common stock loaned under share lending agreements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommonStockLandedUnderFacilities_lbl" xml:lang="en-US">Common stock landed under facilities.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="us-gaap_StatementEquityComponentsAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="lab_StatementEquityComponentsAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementEquityComponentsAxis" xml:lang="en-US">Statement, Equity Components [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="us-gaap_EquityComponentDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="lab_EquityComponentDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityComponentDomain" xml:lang="en-US">Equity Component [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_lbl" xml:lang="en-US">Equity Method Investments And Joint Ventures Abstract</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_lbl" xml:lang="en-US">Investments [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SubscriberRevenueTableTextBlock" xlink:label="siri_SubscriberRevenueTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubscriberRevenueTableTextBlock" xlink:to="siri_SubscriberRevenueTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubscriberRevenueTableTextBlock_lbl" xml:lang="en-US">Subscriber Revenue [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SubscriberRevenueTableTextBlock_lbl" xml:lang="en-US">Subscriber Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberRevenueTableTextBlock_lbl" xml:lang="en-US">Subscriber Revenue.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InterestCostsTableTextBlock" xlink:label="siri_InterestCostsTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InterestCostsTableTextBlock" xlink:to="siri_InterestCostsTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InterestCostsTableTextBlock_lbl" xml:lang="en-US">Interest Costs [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InterestCostsTableTextBlock_lbl" xml:lang="en-US">Interest Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InterestCostsTableTextBlock_lbl" xml:lang="en-US">Interest Costs.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ConstructionInProgressTableTextBlock" xlink:label="siri_ConstructionInProgressTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ConstructionInProgressTableTextBlock" xlink:to="siri_ConstructionInProgressTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ConstructionInProgressTableTextBlock_lbl" xml:lang="en-US">Construction in Progress [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ConstructionInProgressTableTextBlock_lbl" xml:lang="en-US">Construction in progress</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ConstructionInProgressTableTextBlock_lbl" xml:lang="en-US">Construction in progress.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfRelatedPartyTransactionTableTextBlock" xlink:label="siri_SummaryOfRelatedPartyTransactionTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfRelatedPartyTransactionTableTextBlock" xlink:to="siri_SummaryOfRelatedPartyTransactionTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SummaryOfRelatedPartyTransactionTableTextBlock_lbl" xml:lang="en-US">Summary of Related Party Transaction [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SummaryOfRelatedPartyTransactionTableTextBlock_lbl" xml:lang="en-US">Summary of Related Party Balances</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SummaryOfRelatedPartyTransactionTableTextBlock_lbl" xml:lang="en-US">Summary of related party transaction.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock" xlink:to="siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock_lbl" xml:lang="en-US">Summary of Related Party Long-term Debt [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock_lbl" xml:lang="en-US">Summary of Related Party Long Term Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SummaryOfRelatedPartyLongTermDebtTableTextBlock_lbl" xml:lang="en-US">Summary of related party long term debt.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible" xlink:label="siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible" xlink:to="siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible_lbl" xml:lang="en-US">Number of Shares of Common Stock into which Preferred Stock is Convertible</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible_lbl" xml:lang="en-US">Number of shares of common stock into which Series B Preferred Stock is convertible</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfSharesOfCommonStockIntoWhichPreferredStockIsConvertible_lbl" xml:lang="en-US">Number of shares of common stock into which Series B Preferred Stock is convertible.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent" xlink:label="siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent" xlink:to="siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent_lbl" xml:lang="en-US">Minimum Percentage of Common Stock of Group for Right Plan Being Deterrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent_lbl" xml:lang="en-US">The Rights Plan is intended to act as a deterrent to any person or group acquiring this percentage or more of our outstanding common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_MinimumPercentageOfCommonStockOfGroupForRightPlanBeingDeterrent_lbl" xml:lang="en-US">Minimum percentage of common stock of group for right plan being deterrent.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan" xlink:label="siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan" xlink:to="siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan_lbl" xml:lang="en-US">Preferred Stock Reserved for Issuance in Accordance with Rights Plan</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan_lbl" xml:lang="en-US">Series C Junior preferred stock reserved for issuance in accordance with the Rights Plan</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PreferredStockReservedForIssuanceInAccordanceWithRightsPlan_lbl" xml:lang="en-US">Preferred stock reserved for issuance in accordance with rights plan.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="lab_EquityMethodInvestmentsAndJointVenturesAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="us-gaap_RestrictedStockUnitsRSUMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockUnitsRSUMember" xlink:to="lab_RestrictedStockUnitsRSUMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RestrictedStockUnitsRSUMember" xml:lang="en-US">Restricted Stock Units (RSUs) [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfCommonSharesToBeIssuedForEachShare" xlink:label="siri_NumberOfCommonSharesToBeIssuedForEachShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfCommonSharesToBeIssuedForEachShare" xlink:to="siri_NumberOfCommonSharesToBeIssuedForEachShare_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfCommonSharesToBeIssuedForEachShare_lbl" xml:lang="en-US">Number of Common Shares to be Issued for Each Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfCommonSharesToBeIssuedForEachShare_lbl" xml:lang="en-US">The rate Series B Preferred Stock is convertible into shares of our common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfCommonSharesToBeIssuedForEachShare_lbl" xml:lang="en-US">Number of common shares to be issued for each shares.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FutureAmortizationExpenseAfterYearFive" xlink:label="us-gaap_FutureAmortizationExpenseAfterYearFive" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FutureAmortizationExpenseAfterYearFive" xlink:to="lab_FutureAmortizationExpenseAfterYearFive" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FutureAmortizationExpenseAfterYearFive" xml:lang="en-US">Future Amortization Expense, after Year Five</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FutureAmortizationExpenseAfterYearFive" xml:lang="en-US">Thereafter</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:to="lab_EquityMethodInvestmentOwnershipPercentage" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentDecreaseRepayments" xlink:label="us-gaap_DebtInstrumentDecreaseRepayments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentDecreaseRepayments" xlink:to="lab_DebtInstrumentDecreaseRepayments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtInstrumentDecreaseRepayments" xml:lang="en-US">Principal balance repaid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentDecreaseRepayments" xml:lang="en-US">Debt Instrument, Decrease, Repayments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RoyaltyRevenue" xlink:label="us-gaap_RoyaltyRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RoyaltyRevenue" xlink:to="lab_RoyaltyRevenue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RoyaltyRevenue" xml:lang="en-US">Royalty Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_RoyaltyRevenue" xml:lang="en-US">Subscriber and activation fee royalties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_RoyaltyRevenue" xml:lang="en-US">Royalty Revenue, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RoyaltyRevenue" xml:lang="en-US">Royalty income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DividendIncomeOperating" xlink:label="us-gaap_DividendIncomeOperating" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendIncomeOperating" xlink:to="lab_DividendIncomeOperating" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DividendIncomeOperating" xml:lang="en-US">Dividend Income, Operating</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DividendIncomeOperating" xml:lang="en-US">Dividend income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredRevenueRevenueRecognized" xlink:label="us-gaap_DeferredRevenueRevenueRecognized" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueRevenueRecognized" xlink:to="lab_DeferredRevenueRevenueRecognized" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredRevenueRevenueRecognized" xml:lang="en-US">Deferred Revenue, Revenue Recognized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DeferredRevenueRevenueRecognized" xml:lang="en-US">Amortization of Sirius XM Canada deferred Income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DeferredRevenueRevenueRecognized" xml:lang="en-US">Amortization of Sirius XM Canada deferred Income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredRevenueRevenueRecognized" xml:lang="en-US">Amortization of Deferred Hedge Gains</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LicensesRevenue" xlink:label="us-gaap_LicensesRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LicensesRevenue" xlink:to="lab_LicensesRevenue" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LicensesRevenue" xml:lang="en-US">Licenses Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LicensesRevenue" xml:lang="en-US">Licensing fee revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty" xml:lang="en-US">Related Party Transaction, Revenues from Transactions with Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty" xml:lang="en-US">Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty" xml:lang="en-US">Total revenue from related party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty" xml:lang="en-US">Total revenue from related party</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ProfitSharingMember" xlink:label="siri_ProfitSharingMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ProfitSharingMember" xlink:to="siri_ProfitSharingMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ProfitSharingMember_lbl" xml:lang="en-US">Profit Sharing [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ProfitSharingMember_lbl" xml:lang="en-US">Profit Sharing.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ProfitSharingMember_lbl" xml:lang="en-US">Profit Sharing [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_OperatingLeaseTerms" xlink:label="siri_OperatingLeaseTerms" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_OperatingLeaseTerms" xlink:to="siri_OperatingLeaseTerms_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_OperatingLeaseTerms_lbl" xml:lang="en-US">Operating Lease Terms</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_OperatingLeaseTerms_lbl" xml:lang="en-US">Operating lease terms</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_OperatingLeaseTerms_lbl" xml:lang="en-US">operating lease terms.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" xlink:to="lab_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" xml:lang="en-US">Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" xml:lang="en-US">Sale of auction rate of securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CostsAndExpensesAbstract" xml:lang="en-US">Costs and Expenses [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CostsAndExpensesAbstract" xml:lang="en-US">Operating expenses:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SubscriptionRevenue" xml:lang="en-US">Subscription Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_SubscriptionRevenue" xml:lang="en-US">Subscriber and activation fee royalties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SubscriptionRevenue" xml:lang="en-US">Subscriber revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherNonoperatingIncomeExpense" xml:lang="en-US">Other Nonoperating Income (Expense)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Share-based payment expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfRelatedPartyDebt" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfRelatedPartyDebt" xlink:to="lab_RepaymentsOfRelatedPartyDebt" />
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusFmFourSatelliteMember" xlink:label="siri_SiriusFmFourSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusFmFourSatelliteMember" xlink:to="siri_SiriusFmFourSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusFmFourSatelliteMember_lbl" xml:lang="en-US">Sirius Fm Four Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusFmFourSatelliteMember_lbl" xml:lang="en-US">Sirius Fm Four Satellite.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusFmFourSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM 4 satellite [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember" xlink:to="siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember_lbl" xml:lang="en-US">Eight Percent Convertible Unsecured Subordinated Debentures [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember_lbl" xml:lang="en-US">8% Convertible Unsecured Subordinated Debentures [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EightPercentConvertibleUnsecuredSubordinatedDebenturesMember_lbl" xml:lang="en-US">Eight Percent Convertible Unsecured Subordinated Debentures.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EquityMethodInvestmentVotingInterest" xlink:label="siri_EquityMethodInvestmentVotingInterest" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EquityMethodInvestmentVotingInterest" xlink:to="siri_EquityMethodInvestmentVotingInterest_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EquityMethodInvestmentVotingInterest_lbl" xml:lang="en-US">Equity Method Investment Voting Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EquityMethodInvestmentVotingInterest_lbl" xml:lang="en-US">Voting interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EquityMethodInvestmentVotingInterest_lbl" xml:lang="en-US">Equity method investment voting interest.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EquityMethodInvestmentApproximateNumberOfShares" xlink:label="siri_EquityMethodInvestmentApproximateNumberOfShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EquityMethodInvestmentApproximateNumberOfShares" xlink:to="siri_EquityMethodInvestmentApproximateNumberOfShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EquityMethodInvestmentApproximateNumberOfShares_lbl" xml:lang="en-US">Equity Method Investment Approximate Number of Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EquityMethodInvestmentApproximateNumberOfShares_lbl" xml:lang="en-US">Class A shares received from Sirius XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EquityMethodInvestmentApproximateNumberOfShares_lbl" xml:lang="en-US">Equity method investment approximate number of shares.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromCollectionOfLongtermLoansToRelatedParties" xlink:label="us-gaap_ProceedsFromCollectionOfLongtermLoansToRelatedParties" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromCollectionOfLongtermLoansToRelatedParties" xlink:to="lab_ProceedsFromCollectionOfLongtermLoansToRelatedParties" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromCollectionOfLongtermLoansToRelatedParties" xml:lang="en-US">Proceeds from Collection of Long-term Loans to Related Parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromCollectionOfLongtermLoansToRelatedParties" xml:lang="en-US">Cash received as repayment of the XM Canada credit facility and consideration for company's preferred stock in SIRIUS Canada</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock" xlink:label="siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock" xlink:to="siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock_lbl" xml:lang="en-US">Non Interest Bearing Notes Received in Exchange of Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock_lbl" xml:lang="en-US">Non interest bearing notes of CSR with a two year term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NonInterestBearingNotesReceivedInExchangeOfPreferredStock_lbl" xml:lang="en-US">Non interest bearing notes received in exchange of preferred stock.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityMethodInvestments" xml:lang="en-US">Equity Method Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_EquityMethodInvestments" xml:lang="en-US">Investment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EquityMethodInvestments" xml:lang="en-US">Investment in SIRIUS Canada and XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xml:lang="en-US">Granted, options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xml:lang="en-US">Granted, Shares</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ThirdPartiesMember" xlink:label="siri_ThirdPartiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ThirdPartiesMember" xlink:to="siri_ThirdPartiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ThirdPartiesMember_lbl" xml:lang="en-US">Third Parties [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ThirdPartiesMember_lbl" xml:lang="en-US">Third parties.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ThirdPartiesMember_lbl" xml:lang="en-US">Third Parties [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses" xlink:label="siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses" xlink:to="siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses_lbl" xml:lang="en-US">Weighted Average Expected Period for Recognition of Compensation Expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses_lbl" xml:lang="en-US">Weighted average expected period for recognition of compensation expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_WeightedAverageExpectedPeriodForRecognitionOfCompensationExpenses_lbl" xml:lang="en-US">Weighted average expected period for recognition of compensation expenses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NonoperatingIncomeExpense" xml:lang="en-US">Nonoperating Income (Expense)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_NonoperatingIncomeExpense" xml:lang="en-US">Total other expense</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_GainOnMergerOfUnconsolidatedEntities" xlink:label="siri_GainOnMergerOfUnconsolidatedEntities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_GainOnMergerOfUnconsolidatedEntities" xlink:to="siri_GainOnMergerOfUnconsolidatedEntities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_GainOnMergerOfUnconsolidatedEntities_lbl" xml:lang="en-US">Gain on Merger of Unconsolidated Entities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_GainOnMergerOfUnconsolidatedEntities_lbl" xml:lang="en-US">Gain on merger of unconsolidated entities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="siri_GainOnMergerOfUnconsolidatedEntities_lbl" xml:lang="en-US">Net gain recognized in Interest and investment income for reverse acquisition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_GainOnMergerOfUnconsolidatedEntities_lbl" xml:lang="en-US">Gain on merger of unconsolidated entities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_GainOnMergerOfUnconsolidatedEntities_lbl" xml:lang="en-US">Gain on merger of unconsolidated entities.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusXmCanadaMember" xlink:label="siri_SiriusXmCanadaMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusXmCanadaMember" xlink:to="siri_SiriusXmCanadaMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusXmCanadaMember_lbl" xml:lang="en-US">Sirius XM Canada [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusXmCanadaMember_lbl" xml:lang="en-US">SIRIUS XM Canada [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusXmCanadaMember_lbl" xml:lang="en-US">SIRIUS XM Canada.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue" xlink:label="siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue" xlink:to="siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue_lbl" xml:lang="en-US">Payment Received from Related Party in Excess of Carrying Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue_lbl" xml:lang="en-US">Payment received from related party in excess of carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PaymentReceivedFromRelatedPartyInExcessOfCarryingValue_lbl" xml:lang="en-US">Payment received from related party in excess of carrying value.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AmountReceivedAsSettlementForStandbyCreditFacility" xlink:label="siri_AmountReceivedAsSettlementForStandbyCreditFacility" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AmountReceivedAsSettlementForStandbyCreditFacility" xlink:to="siri_AmountReceivedAsSettlementForStandbyCreditFacility_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AmountReceivedAsSettlementForStandbyCreditFacility_lbl" xml:lang="en-US">Amount Received as Settlement for the Standby Credit Facility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AmountReceivedAsSettlementForStandbyCreditFacility_lbl" xml:lang="en-US">Amount received as settlement for the standby credit facility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AmountReceivedAsSettlementForStandbyCreditFacility_lbl" xml:lang="en-US">Amount received as settlement for the standby credit facility.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_WarrantsExpired" xlink:label="siri_WarrantsExpired" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_WarrantsExpired" xlink:to="siri_WarrantsExpired_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_WarrantsExpired_lbl" xml:lang="en-US">Warrants expired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_WarrantsExpired_lbl" xml:lang="en-US">Warrants expired.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_WarrantsExpired_lbl" xml:lang="en-US">Warrants expired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityMethodInvestmentsAndJointVenturesAbstract" xml:lang="en-US">Investments [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RestructuringCostsAndAssetImpairmentCharges_lbl" xml:lang="en-US">Restructuring Costs And Asset Impairment Charges</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RestructuringCostsAndAssetImpairmentCharges_lbl" xml:lang="en-US">Restructuring, impairments and related costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net cash provided by operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net cash used in investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net cash (used in) provided by investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementOfStockholdersEquityAbstract" xml:lang="en-US">Consolidated Statements of Stockholders' Equity and Comprehensive Income [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="us-gaap_ProceedsFromStockOptionsExercised" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromStockOptionsExercised" xlink:to="lab_ProceedsFromStockOptionsExercised" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromStockOptionsExercised" xml:lang="en-US">Proceeds from Stock Options Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromStockOptionsExercised" xml:lang="en-US">Proceeds from exercise of stock options</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfRestrictedInvestments" xlink:label="us-gaap_ProceedsFromSaleOfRestrictedInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfRestrictedInvestments" xlink:to="lab_ProceedsFromSaleOfRestrictedInvestments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromSaleOfRestrictedInvestments" xml:lang="en-US">Proceeds from Sale of Restricted Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_ProceedsFromSaleOfRestrictedInvestments" xml:lang="en-US">Obligations under letters of credit liquidated</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromSaleOfRestrictedInvestments" xml:lang="en-US">Release of restricted investments</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment" xlink:label="siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment" xlink:to="siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment_lbl" xml:lang="en-US">Realized Loss on Investment Foreign Currency Translation Adjustment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment_lbl" xml:lang="en-US">Realized loss on investment foreign currency translation adjustment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RealizedLossOnInvestmentForeignCurrencyTranslationAdjustment_lbl" xml:lang="en-US">Realized loss on XM Canada investment foreign currency translation adjustment</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RecentAccountingPronouncementsPolicyTextBlock" xlink:label="siri_RecentAccountingPronouncementsPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RecentAccountingPronouncementsPolicyTextBlock" xlink:to="siri_RecentAccountingPronouncementsPolicyTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RecentAccountingPronouncementsPolicyTextBlock_lbl" xml:lang="en-US">Recent Accounting Pronouncements [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RecentAccountingPronouncementsPolicyTextBlock_lbl" xml:lang="en-US">Recent Accounting Pronouncements.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RecentAccountingPronouncementsPolicyTextBlock_lbl" xml:lang="en-US">Recent Accounting Pronouncements</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SiriusFmSixSatelliteMember" xlink:label="siri_SiriusFmSixSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SiriusFmSixSatelliteMember" xlink:to="siri_SiriusFmSixSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SiriusFmSixSatelliteMember_lbl" xml:lang="en-US">Sirius Fm Six Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SiriusFmSixSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-6 satellite.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SiriusFmSixSatelliteMember_lbl" xml:lang="en-US">SIRIUS FM-6 satellite [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_FccLicensePendingToLaunch" xlink:label="siri_FccLicensePendingToLaunch" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_FccLicensePendingToLaunch" xlink:to="siri_FccLicensePendingToLaunch_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_FccLicensePendingToLaunch_lbl" xml:lang="en-US">FCC License Pending to Launch</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_FccLicensePendingToLaunch_lbl" xml:lang="en-US">Year in which our FCC license expires</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_FccLicensePendingToLaunch_lbl" xml:lang="en-US">FCC License Pending to Launch.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestCostsIncurred_lbl" xml:lang="en-US">Interest Costs Incurred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_InterestCostsIncurred_lbl" xml:lang="en-US">Total interest costs incurred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityMethodInvestmentOwnershipPercentage" xml:lang="en-US">Equity Method Investment, Ownership Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_EquityMethodInvestmentOwnershipPercentage" xml:lang="en-US">Equity interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EquityMethodInvestmentOwnershipPercentage" xml:lang="en-US">Economic interest related parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DueFromRelatedPartiesCurrent" xml:lang="en-US">Due from Related Parties, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_DueFromRelatedPartiesCurrent" xml:lang="en-US">Amounts due for chipsets and other services</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DueFromRelatedPartiesCurrent" xml:lang="en-US">Due from Related Parties, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DueFromRelatedPartiesCurrent" xml:lang="en-US">Related party current assets</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InvestmentsTextualAbstract" xlink:label="siri_InvestmentsTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InvestmentsTextualAbstract" xlink:to="siri_InvestmentsTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InvestmentsTextualAbstract_lbl" xml:lang="en-US">Investments (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InvestmentsTextualAbstract_lbl" xml:lang="en-US">Investments (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InvestmentsTextualAbstract_lbl" xml:lang="en-US">Investments.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock" xlink:label="siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock" xlink:to="siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock_lbl" xml:lang="en-US">Percentage of Weighting to Observable Historical Volatility for Company's Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock_lbl" xml:lang="en-US">Percentage of weighting of observable historical volatility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PercentageOfWeightingToObservableHistoricalVolatilityForCompanysCommonStock_lbl" xml:lang="en-US">Percentage of weighting to observable historical volatility for company's common stock.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RepaymentsOfRelatedPartyDebt" xml:lang="en-US">Repayments of Related Party Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_RepaymentsOfRelatedPartyDebt" xml:lang="en-US">Repayment of related party long-term borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RepaymentsOfRelatedPartyDebt" xml:lang="en-US">Repayment of related party long-term borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Depreciation" xlink:label="us-gaap_Depreciation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Depreciation" xlink:to="lab_Depreciation" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_Depreciation" xml:lang="en-US">Depreciation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_Depreciation" xml:lang="en-US">Depreciation, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_Depreciation" xml:lang="en-US">Depreciation and amortization expense on property and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromInvestments" xlink:label="us-gaap_PaymentsForProceedsFromInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForProceedsFromInvestments" xlink:to="lab_PaymentsForProceedsFromInvestments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PaymentsForProceedsFromInvestments" xml:lang="en-US">Payments for (Proceeds from) Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_PaymentsForProceedsFromInvestments" xml:lang="en-US">Return of capital from investment in unconsolidated entity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PaymentsForProceedsFromInvestments" xml:lang="en-US">Payments for (Proceeds from) Investments, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PaymentsForProceedsFromInvestments" xml:lang="en-US">Return of capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xml:lang="en-US">Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xml:lang="en-US">Expected amortization expense for each of the fiscal years</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentAdditions" xml:lang="en-US">Property, Plant and Equipment, Additions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentAdditions" xml:lang="en-US">Capitalized expenditures, including interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdvertisingRevenue" xml:lang="en-US">Advertising Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_AdvertisingRevenue" xml:lang="en-US">Advertising reimbursements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdvertisingRevenue" xml:lang="en-US">Advertising revenue, net of agency fees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockSharesAuthorized" xml:lang="en-US">Preferred Stock, Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PreferredStockSharesAuthorized" xml:lang="en-US">Undesignated preferred stock, shares authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xml:lang="en-US">Total unrecognized compensation costs related to unvested share based payment awards for restricted stock units, net of estimated forfeitures</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_XmThreeSatelliteMember" xlink:label="siri_XmThreeSatelliteMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_XmThreeSatelliteMember" xlink:to="siri_XmThreeSatelliteMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_XmThreeSatelliteMember_lbl" xml:lang="en-US">XM Three Satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_XmThreeSatelliteMember_lbl" xml:lang="en-US">XM-3 satellite [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_XmThreeSatelliteMember_lbl" xml:lang="en-US">XM-3 satellite.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_FmFiveXmFiveXmFourAndXmThreeMember" xlink:label="siri_FmFiveXmFiveXmFourAndXmThreeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_FmFiveXmFiveXmFourAndXmThreeMember" xlink:to="siri_FmFiveXmFiveXmFourAndXmThreeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_FmFiveXmFiveXmFourAndXmThreeMember_lbl" xml:lang="en-US">FM Five XM Five XM Four and XM Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_FmFiveXmFiveXmFourAndXmThreeMember_lbl" xml:lang="en-US">FM-5, XM-5, XM-4 and XM-3 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_FmFiveXmFiveXmFourAndXmThreeMember_lbl" xml:lang="en-US">FM-5, XM-5, XM-4 and XM-3.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InterestAndInvestmentIncomeLoss" xlink:label="siri_InterestAndInvestmentIncomeLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InterestAndInvestmentIncomeLoss" xlink:to="siri_InterestAndInvestmentIncomeLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InterestAndInvestmentIncomeLoss_lbl" xml:lang="en-US">Interest and Investment Income Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InterestAndInvestmentIncomeLoss_lbl" xml:lang="en-US">Interest and Investment income (loss).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InterestAndInvestmentIncomeLoss_lbl" xml:lang="en-US">Interest and Investment income (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments to reconcile net income to net cash provided by operating activities:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LicensingAgreementsMember" xml:lang="en-US">Licensing Agreements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LicensingAgreementsMember" xml:lang="en-US">FCC Licenses [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromDividendsReceived" xlink:label="us-gaap_ProceedsFromDividendsReceived" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromDividendsReceived" xlink:to="lab_ProceedsFromDividendsReceived" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ProceedsFromDividendsReceived" xml:lang="en-US">Proceeds from Dividends Received</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ProceedsFromDividendsReceived" xml:lang="en-US">Dividend</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity" xlink:label="us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity" xlink:to="lab_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity" xml:lang="en-US">Equity Method Investment, Difference Between Carrying Amount and Underlying Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity" xml:lang="en-US">Equity Method Investment Goodwill and Intangible Assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromEquityMethodInvestments" xlink:to="lab_IncomeLossFromEquityMethodInvestments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeLossFromEquityMethodInvestments" xml:lang="en-US">Income (Loss) from Equity Method Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeLossFromEquityMethodInvestments" xml:lang="en-US">The Company's share or related party net income (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LongTermDebt" xml:lang="en-US">Long-term Debt</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice" xlink:to="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share Based Payment Award Option Grants in Period Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Granted, Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Share based compensation arrangement by share based payment award option grants in period weighted average exercise price.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice" xlink:to="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share Based Payment Award Option Exercises in Period Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Exercised, Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Share based compensation arrangement by share based payment award option exercises in period weighted average exercise price.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AdvertisingReimbursements" xlink:label="siri_AdvertisingReimbursements" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AdvertisingReimbursements" xlink:to="siri_AdvertisingReimbursements_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AdvertisingReimbursements_lbl" xml:lang="en-US">Advertising Reimbursements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AdvertisingReimbursements_lbl" xml:lang="en-US">Advertising reimbursements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AdvertisingReimbursements_lbl" xml:lang="en-US">Advertising reimbursements.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider" xlink:label="siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider" xlink:to="siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider_lbl" xml:lang="en-US">Share-based Payment Expense Related to Seven Year Agreement with Sports Programming Provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider_lbl" xml:lang="en-US">Share-based payment expense related to seven year agreement with sports programming provider</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedPaymentExpenseRelatedToSevenYearAgreementWithSportsProgrammingProvider_lbl" xml:lang="en-US">Share based payment expense related to seven year agreement with sports programming provider.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xml:lang="en-US">Allocated Share Based Compensation Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xml:lang="en-US">Share-based compensation expense</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_OtherNonCashPurchasePriceAdjustments" xlink:label="siri_OtherNonCashPurchasePriceAdjustments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_OtherNonCashPurchasePriceAdjustments" xlink:to="siri_OtherNonCashPurchasePriceAdjustments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_OtherNonCashPurchasePriceAdjustments_lbl" xml:lang="en-US">Other Non Cash Purchase Price Adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_OtherNonCashPurchasePriceAdjustments_lbl" xml:lang="en-US">Other non-cash purchase price adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_OtherNonCashPurchasePriceAdjustments_lbl" xml:lang="en-US">Other non-cash purchase price adjustments</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ConversionOfSeriesPreferredStockToCommonStock" xlink:label="siri_ConversionOfSeriesPreferredStockToCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ConversionOfSeriesPreferredStockToCommonStock" xlink:to="siri_ConversionOfSeriesPreferredStockToCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ConversionOfSeriesPreferredStockToCommonStock_lbl" xml:lang="en-US">Conversion of Series Preferred Stock to Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ConversionOfSeriesPreferredStockToCommonStock_lbl" xml:lang="en-US">Conversion of Series A preferred stock to common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ConversionOfSeriesPreferredStockToCommonStock_lbl" xml:lang="en-US">Conversion of Series A preferred stock to common stock.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityMethodInvestmentDividendsOrDistributions" xml:lang="en-US">Equity Method Investment, Dividends or Distributions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_EquityMethodInvestmentDividendsOrDistributions" xml:lang="en-US">Distributions from investment in unconsolidated entity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EquityMethodInvestmentDividendsOrDistributions" xml:lang="en-US">Payments received from SIRIUS Canada in excess of carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xml:lang="en-US">Related Party Transaction, Expenses from Transactions with Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xml:lang="en-US">Total</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ExpectedFccLicenseExpirationDescription" xlink:label="siri_ExpectedFccLicenseExpirationDescription" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ExpectedFccLicenseExpirationDescription" xlink:to="siri_ExpectedFccLicenseExpirationDescription_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ExpectedFccLicenseExpirationDescription_lbl" xml:lang="en-US">Expected FCC License Expiration Description</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ExpectedFccLicenseExpirationDescription_lbl" xml:lang="en-US">Expected FCC license expiration description</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ExpectedFccLicenseExpirationDescription_lbl" xml:lang="en-US">Expected FCC license expiration description.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueFromRelatedPartyOtherAbstract" xlink:label="siri_RevenueFromRelatedPartyOtherAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueFromRelatedPartyOtherAbstract" xlink:to="siri_RevenueFromRelatedPartyOtherAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueFromRelatedPartyOtherAbstract_lbl" xml:lang="en-US">Revenue from Related Party Other [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueFromRelatedPartyOtherAbstract_lbl" xml:lang="en-US">Revenue from SIRIUS XM Canada</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueFromRelatedPartyOtherAbstract_lbl" xml:lang="en-US">Revenue from SIRIUS XM Canada.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_OtherRelatedPartyCurrentLiability" xlink:label="siri_OtherRelatedPartyCurrentLiability" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_OtherRelatedPartyCurrentLiability" xlink:to="siri_OtherRelatedPartyCurrentLiability_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_OtherRelatedPartyCurrentLiability_lbl" xml:lang="en-US">Other Related Party Current Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_OtherRelatedPartyCurrentLiability_lbl" xml:lang="en-US">Other related party current liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_OtherRelatedPartyCurrentLiability_lbl" xml:lang="en-US">Other related party current liability</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="us-gaap_EarningsPerShareTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareTextBlock" xlink:to="lab_EarningsPerShareTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EarningsPerShareTextBlock" xml:lang="en-US">Earnings Per Share [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EarningsPerShareTextBlock" xml:lang="en-US">Earnings per Share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryDisclosureTextBlock" xlink:label="us-gaap_InventoryDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryDisclosureTextBlock" xlink:to="lab_InventoryDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryDisclosureTextBlock" xml:lang="en-US">Inventory Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InventoryDisclosureTextBlock" xml:lang="en-US">Inventory</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxDisclosureTextBlock" xlink:to="lab_IncomeTaxDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxDisclosureTextBlock" xml:lang="en-US">Income Tax Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxDisclosureTextBlock" xml:lang="en-US">Income Taxes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="us-gaap_QuarterlyFinancialInformationTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_QuarterlyFinancialInformationTextBlock" xlink:to="lab_QuarterlyFinancialInformationTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_QuarterlyFinancialInformationTextBlock" xml:lang="en-US">Quarterly Financial Information [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_QuarterlyFinancialInformationTextBlock" xml:lang="en-US">Quarterly Financial Data - Unaudited</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="us-gaap_SubsequentEventsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="lab_SubsequentEventsTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SubsequentEventsTextBlock" xml:lang="en-US">Subsequent Events [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SubsequentEventsTextBlock" xml:lang="en-US">Subsequent Events</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdvertisingCostsPolicyTextBlock" xlink:label="us-gaap_AdvertisingCostsPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdvertisingCostsPolicyTextBlock" xlink:to="lab_AdvertisingCostsPolicyTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdvertisingCostsPolicyTextBlock" xml:lang="en-US">Advertising Costs, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdvertisingCostsPolicyTextBlock" xml:lang="en-US">Advertising Costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="lab_CashAndCashEquivalentsPolicyTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US">Cash and Cash Equivalents, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US">Cash and Cash Equivalents</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityMethodInvestmentsPolicy" xlink:label="us-gaap_EquityMethodInvestmentsPolicy" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentsPolicy" xlink:to="lab_EquityMethodInvestmentsPolicy" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquityMethodInvestmentsPolicy" xml:lang="en-US">Equity Method Investments, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EquityMethodInvestmentsPolicy" xml:lang="en-US">Equity Method Investments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="us-gaap_IncomeTaxPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxPolicyTextBlock" xlink:to="lab_IncomeTaxPolicyTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxPolicyTextBlock" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxPolicyTextBlock" xml:lang="en-US">Income Taxes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="lab_PropertyPlantAndEquipmentPolicyTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentPolicyTextBlock" xml:lang="en-US">Property, Plant and Equipment, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentPolicyTextBlock" xml:lang="en-US">Property and Equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="lab_ResearchAndDevelopmentExpensePolicy" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ResearchAndDevelopmentExpensePolicy" xml:lang="en-US">Research and Development Expense, Policy [Policy Text Block]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueSharePolicyTextBlock_lbl" xml:lang="en-US">Revenue Share.</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ProgrammingCostsPolicyTextBlock" xlink:to="siri_ProgrammingCostsPolicyTextBlock_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ProgrammingCostsPolicyTextBlock_lbl" xml:lang="en-US">Programming Costs.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberAcquisitionCostsPolicyTextBlock_lbl" xml:lang="en-US">Subscriber Acquisition Costs.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SubscriberAcquisitionCostsPolicyTextBlock_lbl" xml:lang="en-US">Subscriber Acquisition Costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="us-gaap_SubsequentEventsAbstract" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SubsequentEventsAbstract" xml:lang="en-US">Subsequent Events [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_BusinessTextualAbstract" xlink:label="siri_BusinessTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_BusinessTextualAbstract" xlink:to="siri_BusinessTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_BusinessTextualAbstract_lbl" xml:lang="en-US">Business (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_BusinessTextualAbstract_lbl" xml:lang="en-US">Business.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_BusinessTextualAbstract_lbl" xml:lang="en-US">Business (Textual) [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:to="lab_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitAbstract" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefitAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CurrentIncomeTaxExpenseBenefitAbstract" xlink:to="lab_CurrentIncomeTaxExpenseBenefitAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CurrentIncomeTaxExpenseBenefitAbstract" xml:lang="en-US">Current Income Tax Expense (Benefit) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CurrentIncomeTaxExpenseBenefitAbstract" xml:lang="en-US">Current taxes:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitAbstract" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefitAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxExpenseBenefitAbstract" xlink:to="lab_DeferredIncomeTaxExpenseBenefitAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredIncomeTaxExpenseBenefitAbstract" xml:lang="en-US">Deferred Income Tax Expense (Benefit) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredIncomeTaxExpenseBenefitAbstract" xml:lang="en-US">Deferred taxes:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:to="lab_DeferredStateAndLocalIncomeTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredStateAndLocalIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred State and Local Income Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredStateAndLocalIncomeTaxExpenseBenefit" xml:lang="en-US">State</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:to="lab_DeferredFederalIncomeTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredFederalIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred Federal Income Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredFederalIncomeTaxExpenseBenefit" xml:lang="en-US">Federal</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:to="lab_CurrentIncomeTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CurrentIncomeTaxExpenseBenefit" xml:lang="en-US">Current Income Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CurrentIncomeTaxExpenseBenefit" xml:lang="en-US">Total current taxes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="us-gaap_CurrentForeignTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CurrentForeignTaxExpenseBenefit" xlink:to="lab_CurrentForeignTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CurrentForeignTaxExpenseBenefit" xml:lang="en-US">Current Foreign Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CurrentForeignTaxExpenseBenefit" xml:lang="en-US">Foreign</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="us-gaap_CurrentStateAndLocalTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:to="lab_CurrentStateAndLocalTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CurrentStateAndLocalTaxExpenseBenefit" xml:lang="en-US">Current State and Local Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CurrentStateAndLocalTaxExpenseBenefit" xml:lang="en-US">State</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="us-gaap_CurrentFederalTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CurrentFederalTaxExpenseBenefit" xlink:to="lab_CurrentFederalTaxExpenseBenefit" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CurrentFederalTaxExpenseBenefit" xml:lang="en-US">Current Federal Tax Expense (Benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CurrentFederalTaxExpenseBenefit" xml:lang="en-US">Federal</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpense" xlink:label="us-gaap_IncomeTaxReconciliationNondeductibleExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxReconciliationNondeductibleExpense" xlink:to="lab_IncomeTaxReconciliationNondeductibleExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxReconciliationNondeductibleExpense" xml:lang="en-US">Income Tax Reconciliation, Nondeductible Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IncomeTaxReconciliationNondeductibleExpense" xml:lang="en-US">Income Tax Reconciliation, Nondeductible Expense, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxReconciliationNondeductibleExpense" xml:lang="en-US">Non-deductible expenses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xml:lang="en-US">Federal tax expense (benefit), at statutory rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xml:lang="en-US">State income tax expense (benefit), net of federal benefit</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="lab_NetIncomeLossAvailableToCommonStockholdersBasic" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetIncomeLossAvailableToCommonStockholdersBasic" xml:lang="en-US">Net Income (Loss) Available to Common Stockholders, Basic</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PreferredStockConversionsInducements" xml:lang="en-US">Preferred Stock Conversions, Inducements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_PreferredStockConversionsInducements" xml:lang="en-US">Preferred stock beneficial conversion feature</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xml:lang="en-US">Unrealized gain on available-for-sale securities</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_StructuringFeeOnSecuredNotesShares" xlink:label="siri_StructuringFeeOnSecuredNotesShares" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_StructuringFeeOnSecuredNotesShares_lbl" xml:lang="en-US">Structuring Fee on Secured Notes Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_StructuringFeeOnSecuredNotesShares_lbl" xml:lang="en-US">Structuring fee on 10% Senior PIK Secured Notes due 2011, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_StructuringFeeOnSecuredNotesShares_lbl" xml:lang="en-US">Structuring fee on secured notes shares.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_StructuringFeeOnSecuredNotes" xlink:label="siri_StructuringFeeOnSecuredNotes" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_StructuringFeeOnSecuredNotes_lbl" xml:lang="en-US">Structuring fee on 10% Senior PIK Secured Notes due 2011</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_StructuringFeeOnSecuredNotes_lbl" xml:lang="en-US">Structuring fee on secured notes.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReturnedSharesUnderShareBorrowAgreements" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreements" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreements_lbl" xml:lang="en-US">Return shares under share borrow agreements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreements_lbl" xml:lang="en-US">Returned shares under share borrow agreements.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReturnedSharesUnderShareBorrowAgreementsShares" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreementsShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReturnedSharesUnderShareBorrowAgreementsShares" xlink:to="siri_ReturnedSharesUnderShareBorrowAgreementsShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreementsShares_lbl" xml:lang="en-US">Returned Shares under Share Borrow Agreements Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreementsShares_lbl" xml:lang="en-US">Return shares under share borrow agreements, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReturnedSharesUnderShareBorrowAgreementsShares_lbl" xml:lang="en-US">Returned shares under share borrow agreements, shares.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:to="lab_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Issuance of restricted stock units in satisfaction of accrued compensation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:to="lab_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Issuance of restricted stock units in satisfaction of accrued compensation, shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="lab_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xml:lang="en-US">Stock Issued During Period, Value, Conversion of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xml:lang="en-US">Conversion of preferred stock to common stock</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="lab_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Stock Issued During Period, Shares, Conversion of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Conversion of preferred stock to common stock, shares</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation" xlink:label="siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation" xlink:to="siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation_lbl" xml:lang="en-US">Share Based Payments in Satisfaction of Accrued Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation_lbl" xml:lang="en-US">Share based payments in satisfaction of accrued compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedPaymentsInSatisfactionOfAccruedCompensation_lbl" xml:lang="en-US">Share based payments in satisfaction of accrued compensation.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CommonStockIssuedInExchangeOfConvertibleNotes" xlink:label="siri_CommonStockIssuedInExchangeOfConvertibleNotes" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommonStockIssuedInExchangeOfConvertibleNotes" xlink:to="siri_CommonStockIssuedInExchangeOfConvertibleNotes_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommonStockIssuedInExchangeOfConvertibleNotes_lbl" xml:lang="en-US">Common Stock Issued in Exchange of Convertible Notes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommonStockIssuedInExchangeOfConvertibleNotes_lbl" xml:lang="en-US">Common stock issued in exchange of 2.5% Convertible Notes due 2009 including, accrued interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommonStockIssuedInExchangeOfConvertibleNotes_lbl" xml:lang="en-US">Common stock issued in exchange of convertible notes.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" xlink:label="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" xlink:to="lab_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" xml:lang="en-US">Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" xml:lang="en-US">Structuring fee on 10% Senior PIK Secured Notes due 2011</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PreferredStockIssuedToRelatedParty" xlink:label="siri_PreferredStockIssuedToRelatedParty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PreferredStockIssuedToRelatedParty" xlink:to="siri_PreferredStockIssuedToRelatedParty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PreferredStockIssuedToRelatedParty_lbl" xml:lang="en-US">Preferred Stock Issued to Related Party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="siri_PreferredStockIssuedToRelatedParty_lbl" xml:lang="en-US">Increase to additional paid-in capital, excluding issuance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PreferredStockIssuedToRelatedParty_lbl" xml:lang="en-US">Preferred stock issued to Liberty Media</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PreferredStockIssuedToRelatedParty_lbl" xml:lang="en-US">Preferred stock issued to related party.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReleaseOfRestrictedInvestments" xlink:label="siri_ReleaseOfRestrictedInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReleaseOfRestrictedInvestments" xlink:to="siri_ReleaseOfRestrictedInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReleaseOfRestrictedInvestments_lbl" xml:lang="en-US">Release of Restricted Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReleaseOfRestrictedInvestments_lbl" xml:lang="en-US">Release of restricted investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReleaseOfRestrictedInvestments_lbl" xml:lang="en-US">Release of restricted investments.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InOrbitSatellitePerformanceIncentives" xlink:label="siri_InOrbitSatellitePerformanceIncentives" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InOrbitSatellitePerformanceIncentives" xlink:to="siri_InOrbitSatellitePerformanceIncentives_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InOrbitSatellitePerformanceIncentives_lbl" xml:lang="en-US">In Orbit Satellite Performance Incentives</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_InOrbitSatellitePerformanceIncentives_lbl" xml:lang="en-US">In-orbit satellite performance incentive</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InOrbitSatellitePerformanceIncentives_lbl" xml:lang="en-US">In orbit satellite performance incentives.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="lab_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xml:lang="en-US">Schedule of Deferred Tax Assets and Liabilities [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xml:lang="en-US">Temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xlink:label="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xlink:to="lab_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xml:lang="en-US">Components of Deferred Tax Assets and Liabilities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xml:lang="en-US">Temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsGrossAbstract" xlink:label="us-gaap_DeferredTaxAssetsGrossAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsGrossAbstract" xlink:to="lab_DeferredTaxAssetsGrossAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsGrossAbstract" xml:lang="en-US">Deferred Tax Assets, Gross [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsGrossAbstract" xml:lang="en-US">Deferred tax assets:</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NetDeferredTaxAssetsBeforeValuationAllowance" xlink:label="siri_NetDeferredTaxAssetsBeforeValuationAllowance" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NetDeferredTaxAssetsBeforeValuationAllowance" xlink:to="siri_NetDeferredTaxAssetsBeforeValuationAllowance_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NetDeferredTaxAssetsBeforeValuationAllowance_lbl" xml:lang="en-US">Net Deferred Tax Assets before Valuation Allowance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="siri_NetDeferredTaxAssetsBeforeValuationAllowance_lbl" xml:lang="en-US">Net deferred tax assets before valuation allowance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NetDeferredTaxAssetsBeforeValuationAllowance_lbl" xml:lang="en-US">Net deferred tax assets before valuation allowance.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DeferredTaxAssetsLoanFinancingCosts" xlink:label="siri_DeferredTaxAssetsLoanFinancingCosts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DeferredTaxAssetsLoanFinancingCosts" xlink:to="siri_DeferredTaxAssetsLoanFinancingCosts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DeferredTaxAssetsLoanFinancingCosts_lbl" xml:lang="en-US">Deferred Tax Assets, Loan Financing Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DeferredTaxAssetsLoanFinancingCosts_lbl" xml:lang="en-US">Loan financing costs.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DeferredTaxAssetsLoanFinancingCosts_lbl" xml:lang="en-US">Loan financing costs</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax" xlink:label="siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax" xlink:to="siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax_lbl" xml:lang="en-US">Deferred Tax Assets, Expensed Costs Capitalized for Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax_lbl" xml:lang="en-US">Expensed costs capitalized for tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DeferredTaxAssetsExpensedCostsCapitalizedForTax_lbl" xml:lang="en-US">Expensed costs capitalized for tax.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:to="lab_DeferredTaxAssetsOperatingLossCarryforwards" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsOperatingLossCarryforwards" xml:lang="en-US">Deferred Tax Assets, Operating Loss Carryforwards</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredTaxAssetsOperatingLossCarryforwards" xml:lang="en-US">Deferred Tax Assets, Operating Loss Carryforwards, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsOperatingLossCarryforwards" xml:lang="en-US">Net operating loss carryforwards</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsDeferredIncome" xlink:label="us-gaap_DeferredTaxAssetsDeferredIncome" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsDeferredIncome" xlink:to="lab_DeferredTaxAssetsDeferredIncome" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsDeferredIncome" xml:lang="en-US">Deferred Tax Assets, Deferred Income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsDeferredIncome" xml:lang="en-US">Deferred revenue</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="us-gaap_DeferredTaxAssetsOther" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOther" xlink:to="lab_DeferredTaxAssetsOther" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsOther" xml:lang="en-US">Deferred Tax Assets, Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsOther" xml:lang="en-US">Other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="us-gaap_DeferredTaxAssetsGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="lab_DeferredTaxAssetsGross" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsGross" xml:lang="en-US">Deferred Tax Assets, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_DeferredTaxAssetsGross" xml:lang="en-US">Total deferred tax assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredTaxAssetsGross" xml:lang="en-US">Total deferred tax assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:to="lab_DeferredTaxLiabilitiesPropertyPlantAndEquipment" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xml:lang="en-US">Deferred Tax Liabilities, Property, Plant and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xml:lang="en-US">Depreciation of property and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xml:lang="en-US">Depreciation of property and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="us-gaap_DeferredTaxLiabilitiesOther" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesOther" xlink:to="lab_DeferredTaxLiabilitiesOther" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxLiabilitiesOther" xml:lang="en-US">Deferred Tax Liabilities, Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DeferredTaxLiabilitiesOther" xml:lang="en-US">Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxLiabilitiesOther" xml:lang="en-US">Other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="us-gaap_DeferredTaxLiabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilities" xlink:to="lab_DeferredTaxLiabilities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxLiabilities" xml:lang="en-US">Deferred Tax Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_DeferredTaxLiabilities" xml:lang="en-US">Total deferred tax liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredTaxLiabilities" xml:lang="en-US">Net deferred tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:to="lab_DeferredTaxAssetsLiabilitiesNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Deferred Tax Assets (Liabilities), Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Net deferred tax liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Total deferred tax liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Net deferred tax liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Net deferred tax liability</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IncomeTaxTextualAbstract" xlink:label="siri_IncomeTaxTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IncomeTaxTextualAbstract" xlink:to="siri_IncomeTaxTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IncomeTaxTextualAbstract_lbl" xml:lang="en-US">Income Tax (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IncomeTaxTextualAbstract_lbl" xml:lang="en-US">Income Tax (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IncomeTaxTextualAbstract_lbl" xml:lang="en-US">Income Tax.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:to="lab_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xml:lang="en-US">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xml:lang="en-US">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xml:lang="en-US">Accrued for interest and penalties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:to="lab_ScheduleOfQuarterlyFinancialInformationTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xml:lang="en-US">Schedule of Quarterly Financial Information [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xml:lang="en-US">Quarterly results of operations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfServices" xlink:label="us-gaap_CostOfServices" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfServices" xlink:to="lab_CostOfServices" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CostOfServices" xml:lang="en-US">Cost of Services</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_CostOfServices" xml:lang="en-US">Cost of services</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_CostOfServices" xml:lang="en-US">Cost of Services, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CostOfServices" xml:lang="en-US">Cost of services</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_FairValueMeasurementPolicyTextBlock" xlink:label="siri_FairValueMeasurementPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_FairValueMeasurementPolicyTextBlock" xlink:to="siri_FairValueMeasurementPolicyTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_FairValueMeasurementPolicyTextBlock_lbl" xml:lang="en-US">Fair Value Measurement [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_FairValueMeasurementPolicyTextBlock_lbl" xml:lang="en-US">Fair Value Measurement (ASU 2011-04)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_FairValueMeasurementPolicyTextBlock_lbl" xml:lang="en-US">Fair value measurement.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:label="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:to="lab_GoodwillAndIntangibleAssetsPolicyTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GoodwillAndIntangibleAssetsPolicyTextBlock" xml:lang="en-US">Goodwill and Intangible Assets, Policy [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_GoodwillAndIntangibleAssetsPolicyTextBlock" xml:lang="en-US">Goodwill and Other Intangible Assets</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IssuanceOfPreferredStockNetOfCosts" xlink:label="siri_IssuanceOfPreferredStockNetOfCosts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IssuanceOfPreferredStockNetOfCosts" xlink:to="siri_IssuanceOfPreferredStockNetOfCosts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IssuanceOfPreferredStockNetOfCosts_lbl" xml:lang="en-US">Issuance of Preferred Stock Net of Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_IssuanceOfPreferredStockNetOfCosts_lbl" xml:lang="en-US">Preferred stock issuance, net of costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IssuanceOfPreferredStockNetOfCosts_lbl" xml:lang="en-US">Par value of preferred stock, net of issuance costs.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SecuredNotesMember" xlink:label="siri_SecuredNotesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SecuredNotesMember" xlink:to="siri_SecuredNotesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SecuredNotesMember_lbl" xml:lang="en-US">Secured Notes [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SecuredNotesMember_lbl" xml:lang="en-US">Secured notes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SecuredNotesMember_lbl" xml:lang="en-US">Secured Notes</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember" xlink:label="siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember" xlink:to="siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember_lbl" xml:lang="en-US">Two Point Five Percent Convertible Notes Due Two Thousand Nine [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember_lbl" xml:lang="en-US">2.5% Convertible Notes due 2009</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_TwoPointFivePercentConvertibleNotesDueTwoThousandNineMember_lbl" xml:lang="en-US">Two Point Five Percent Convertible Notes Due 2009.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="us-gaap_DebtInstrumentAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="lab_DebtInstrumentAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentAxis" xml:lang="en-US">Debt Instrument [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="us-gaap_DebtInstrumentNameDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentNameDomain" xlink:to="lab_DebtInstrumentNameDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DebtInstrumentNameDomain" xml:lang="en-US">Debt Instrument, Name [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="lab_StockIssuedDuringPeriodValueNewIssues" />
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="lab_StockIssuedDuringPeriodSharesNewIssues" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US">Issuance of preferred stock - related party, net of issuance costs, shares</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ExchangeOfConvertibleNotesDueTwoThousandNine" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNine" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ExchangeOfConvertibleNotesDueTwoThousandNine" xlink:to="siri_ExchangeOfConvertibleNotesDueTwoThousandNine_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNine_lbl" xml:lang="en-US">Exchange of Convertible Notes Due Two Thousand Nine</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNine_lbl" xml:lang="en-US">Exchange of 2.5% Convertible Notes due 2009, including accrued interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNine_lbl" xml:lang="en-US">Exchange of convertible notes due 2009.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares" xlink:to="siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares_lbl" xml:lang="en-US">Exchange of Convertible Notes Due Two Thousand Nine Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares_lbl" xml:lang="en-US">Exchange of 2.5% Convertible Notes due 2009, including accrued interest, shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ExchangeOfConvertibleNotesDueTwoThousandNineShares_lbl" xml:lang="en-US">Exchange of convertible notes due 2009 shares.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfSatelliteRadioSystems" xlink:label="siri_NumberOfSatelliteRadioSystems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfSatelliteRadioSystems" xlink:to="siri_NumberOfSatelliteRadioSystems_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfSatelliteRadioSystems_lbl" xml:lang="en-US">Number of Satellite Radio Systems</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfSatelliteRadioSystems_lbl" xml:lang="en-US">Number of satellite radio systems</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfSatelliteRadioSystems_lbl" xml:lang="en-US">Number of Satellite radio systems.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature" xlink:label="siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature" xlink:to="siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature_lbl" xml:lang="en-US">Adjustments to Additional Paid in Capital Convertible Preferred Stock with Conversion Feature</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature_lbl" xml:lang="en-US">Increase in paid-in capital for the beneficial conversion feature</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AdjustmentsToAdditionalPaidInCapitalConvertiblePreferredStockWithConversionFeature_lbl" xml:lang="en-US">Adjustments to additional paid in capital convertible preferred stock with conversion feature.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:to="lab_IncomeTaxExpenseBenefitContinuingOperationsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxExpenseBenefitContinuingOperationsAbstract" xml:lang="en-US">Income Tax Expense (Benefit), Continuing Operations [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxExpenseBenefitContinuingOperationsAbstract" xml:lang="en-US">Income tax expense</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IncomeTaxReconciliationStateRateChanges" xlink:label="siri_IncomeTaxReconciliationStateRateChanges" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IncomeTaxReconciliationStateRateChanges" xlink:to="siri_IncomeTaxReconciliationStateRateChanges_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IncomeTaxReconciliationStateRateChanges_lbl" xml:lang="en-US">Income Tax Reconciliation, State Rate Changes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_IncomeTaxReconciliationStateRateChanges_lbl" xml:lang="en-US">State rate changes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IncomeTaxReconciliationStateRateChanges_lbl" xml:lang="en-US">State rate changes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IncomeTaxReconciliationStateRateChanges_lbl" xml:lang="en-US">Income tax reconciliation state rate changes.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:to="lab_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xml:lang="en-US">Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xml:lang="en-US">Difference between the federal tax benefit at statutory rate and at our effective rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xlink:label="us-gaap_IncomeTaxReconciliationOtherReconcilingItems" />
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    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DeferredTaxLiabilitiesOtherIntangibleAssets" xlink:label="siri_DeferredTaxLiabilitiesOtherIntangibleAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DeferredTaxLiabilitiesOtherIntangibleAssets" xlink:to="siri_DeferredTaxLiabilitiesOtherIntangibleAssets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DeferredTaxLiabilitiesOtherIntangibleAssets_lbl" xml:lang="en-US">Deferred Tax Liabilities, Other Intangible Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="siri_DeferredTaxLiabilitiesOtherIntangibleAssets_lbl" xml:lang="en-US">Other intangible assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DeferredTaxLiabilitiesOtherIntangibleAssets_lbl" xml:lang="en-US">Other intangible assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DeferredTaxLiabilitiesOtherIntangibleAssets_lbl" xml:lang="en-US">Deferred tax liabilities other intangible assets.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xlink:label="us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xlink:to="lab_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xml:lang="en-US">Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xml:lang="en-US">Difference between federal tax expense (benefit) at statutory rate and at our effective rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsSeverancePayments" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsSeverancePayments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsSeverancePayments" xlink:to="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsSeverancePayments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsSeverancePayments" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Severance Payments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsSeverancePayments" xml:lang="en-US">Severance accrual</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses" xlink:to="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Bonuses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses" xml:lang="en-US">Accrued bonus</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:to="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xml:lang="en-US">Stock based compensation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsNetAbstract" xlink:label="us-gaap_DeferredTaxAssetsNetAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsNetAbstract" xlink:to="lab_DeferredTaxAssetsNetAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsNetAbstract" xml:lang="en-US">Deferred Tax Assets, Net [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsNetAbstract" xml:lang="en-US">Deferred tax liabilities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:to="lab_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xml:lang="en-US">Deferred Tax Liabilities, Goodwill and Intangible Assets, Intangible Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xml:lang="en-US">FCC license</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xml:lang="en-US">FCC license</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="lab_DeferredTaxAssetsValuationAllowance" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsValuationAllowance" xml:lang="en-US">Deferred Tax Assets, Valuation Allowance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_DeferredTaxAssetsValuationAllowance" xml:lang="en-US">Valuation allowance</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_DeferredTaxAssetsPaymentsAndLiabilities" xlink:label="siri_DeferredTaxAssetsPaymentsAndLiabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DeferredTaxAssetsPaymentsAndLiabilities" xlink:to="siri_DeferredTaxAssetsPaymentsAndLiabilities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DeferredTaxAssetsPaymentsAndLiabilities_lbl" xml:lang="en-US">Deferred Tax Assets, Payments and Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_DeferredTaxAssetsPaymentsAndLiabilities_lbl" xml:lang="en-US">GM payments and liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DeferredTaxAssetsPaymentsAndLiabilities_lbl" xml:lang="en-US">Deferred tax assets payments and liabilities.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="us-gaap_IncomeTaxDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="lab_IncomeTaxDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncomeTaxDisclosureAbstract" xml:lang="en-US">Income Taxes [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="us-gaap_QuarterlyFinancialInformationDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:to="lab_QuarterlyFinancialInformationDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_QuarterlyFinancialInformationDisclosureAbstract" xml:lang="en-US">Quarterly Financial Data Unaudited [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_AmortizationPeriodOfFccLicense" xlink:label="siri_AmortizationPeriodOfFccLicense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_AmortizationPeriodOfFccLicense" xlink:to="siri_AmortizationPeriodOfFccLicense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_AmortizationPeriodOfFccLicense_lbl" xml:lang="en-US">Amortization Period of FCC License</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_AmortizationPeriodOfFccLicense_lbl" xml:lang="en-US">Amortized period of license</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_AmortizationPeriodOfFccLicense_lbl" xml:lang="en-US">Amortization period of FCC license.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RevenueFromRelatedPartyTableTextBlock" xlink:label="siri_RevenueFromRelatedPartyTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RevenueFromRelatedPartyTableTextBlock" xlink:to="siri_RevenueFromRelatedPartyTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RevenueFromRelatedPartyTableTextBlock_lbl" xml:lang="en-US">Revenue from Related Party [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RevenueFromRelatedPartyTableTextBlock_lbl" xml:lang="en-US">Revenue from Related Party Transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RevenueFromRelatedPartyTableTextBlock_lbl" xml:lang="en-US">Revenue from related party.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ExpensesIncurredWithRelatedPartyTableTextBlock" xlink:label="siri_ExpensesIncurredWithRelatedPartyTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ExpensesIncurredWithRelatedPartyTableTextBlock" xlink:to="siri_ExpensesIncurredWithRelatedPartyTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ExpensesIncurredWithRelatedPartyTableTextBlock_lbl" xml:lang="en-US">Expenses Incurred with Related Party [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ExpensesIncurredWithRelatedPartyTableTextBlock_lbl" xml:lang="en-US">Expenses Incurred with General Motors and American Honda</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ExpensesIncurredWithRelatedPartyTableTextBlock_lbl" xml:lang="en-US">Expenses incurred with related party</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" xlink:label="siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" xlink:to="siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Leverage Ratio after Incurrence of Indebtedness to Incur Additional Indebtedness</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Maximum Consolidated leverage Ratio after the incurrence of the indebtedness to incur additional indebtedness</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Leverage ratio after incurrence of indebtedness to incur additional indebtedness.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquipmentMember" xlink:label="us-gaap_EquipmentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquipmentMember" xlink:to="lab_EquipmentMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EquipmentMember" xml:lang="en-US">Equipment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EquipmentMember" xml:lang="en-US">Broadcast studio equipment [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_CapitalizedSoftwareAndHardwareMember" xlink:label="siri_CapitalizedSoftwareAndHardwareMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CapitalizedSoftwareAndHardwareMember" xlink:to="siri_CapitalizedSoftwareAndHardwareMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CapitalizedSoftwareAndHardwareMember_lbl" xml:lang="en-US">Capitalized Software and Hardware [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CapitalizedSoftwareAndHardwareMember_lbl" xml:lang="en-US">Capitalized software and hardware.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CapitalizedSoftwareAndHardwareMember_lbl" xml:lang="en-US">Capitalized software and hardware [Member]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteTelemetryTrackingAndControlFacilitiesMember" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilitiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteTelemetryTrackingAndControlFacilitiesMember" xlink:to="siri_SatelliteTelemetryTrackingAndControlFacilitiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilitiesMember_lbl" xml:lang="en-US">Satellite Telemetry, Tracking and Control Facilities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilitiesMember_lbl" xml:lang="en-US">Satellite telemetry, tracking and control facilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteTelemetryTrackingAndControlFacilitiesMember_lbl" xml:lang="en-US">Satellite telemetry, tracking and control facilities [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum" xlink:to="lab_PropertyPlantAndEquipmentUsefulLifeMinimum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentUsefulLifeMinimum" xml:lang="en-US">Property, Plant and Equipment, Useful Life, Minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentUsefulLifeMinimum" xml:lang="en-US">Property and Equipment, Depreciable Life, Minimum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum" xlink:to="lab_PropertyPlantAndEquipmentUsefulLifeMaximum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentUsefulLifeMaximum" xml:lang="en-US">Property, Plant and Equipment, Useful Life, Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentUsefulLifeMaximum" xml:lang="en-US">Property and Equipment, Depreciable Life, Maximum</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_LeaseholdImprovements" xlink:label="siri_LeaseholdImprovements" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_LeaseholdImprovements" xlink:to="siri_LeaseholdImprovements_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_LeaseholdImprovements_lbl" xml:lang="en-US">Leasehold Improvements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_LeaseholdImprovements_lbl" xml:lang="en-US">Leasehold improvements.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_LeaseholdImprovements_lbl" xml:lang="en-US">Leasehold improvements</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract" xlink:label="siri_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract" xlink:to="siri_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract_lbl" xml:lang="en-US">Summary of significant accounting policies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract_lbl" xml:lang="en-US">Summary of Significant Accounting Policies (Additional Textual) [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="us-gaap_FurnitureAndFixturesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FurnitureAndFixturesMember" xlink:to="lab_FurnitureAndFixturesMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FurnitureAndFixturesMember" xml:lang="en-US">Furniture and Fixtures [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FurnitureAndFixturesMember" xml:lang="en-US">Furniture, fixtures, equipment and other [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BuildingMember" xlink:label="us-gaap_BuildingMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BuildingMember" xlink:to="lab_BuildingMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_BuildingMember" xml:lang="en-US">Building [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_BuildingMember" xml:lang="en-US">Building [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdvertisingExpense" xlink:label="us-gaap_AdvertisingExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdvertisingExpense" xlink:to="lab_AdvertisingExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AdvertisingExpense" xml:lang="en-US">Advertising Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AdvertisingExpense" xml:lang="en-US">Advertising costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="us-gaap_ResearchAndDevelopmentExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="lab_ResearchAndDevelopmentExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ResearchAndDevelopmentExpense" xml:lang="en-US">Research and Development Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ResearchAndDevelopmentExpense" xml:lang="en-US">Research and Development Expense, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ResearchAndDevelopmentExpense" xml:lang="en-US">Research and development costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:to="lab_EarningsPerShareBasicAndDilutedAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_EarningsPerShareBasicAndDilutedAbstract" xml:lang="en-US">Earnings Per Share, Basic and Diluted [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EarningsPerShareBasicAndDilutedAbstract" xml:lang="en-US">Net income (loss) per common share</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EarningsPerShareTextualAbstract" xlink:label="siri_EarningsPerShareTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EarningsPerShareTextualAbstract" xlink:to="siri_EarningsPerShareTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EarningsPerShareTextualAbstract_lbl" xml:lang="en-US">Earnings Per Share (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EarningsPerShareTextualAbstract_lbl" xml:lang="en-US">Earnings per Share (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EarningsPerShareTextualAbstract_lbl" xml:lang="en-US">Earnings per share.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ReceivablesFromDistributorsTableTextBlock" xlink:label="siri_ReceivablesFromDistributorsTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ReceivablesFromDistributorsTableTextBlock" xlink:to="siri_ReceivablesFromDistributorsTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ReceivablesFromDistributorsTableTextBlock_lbl" xml:lang="en-US">Receivables from Distributors [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ReceivablesFromDistributorsTableTextBlock_lbl" xml:lang="en-US">Receivables from distributors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ReceivablesFromDistributorsTableTextBlock_lbl" xml:lang="en-US">Receivables from distributors.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:to="lab_ScheduleOfInventoryCurrentTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfInventoryCurrentTableTextBlock" xml:lang="en-US">Schedule of Inventory, Current [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfInventoryCurrentTableTextBlock" xml:lang="en-US">Summary of inventory net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryDisclosureAbstract" xlink:label="us-gaap_InventoryDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryDisclosureAbstract" xlink:to="lab_InventoryDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryDisclosureAbstract" xml:lang="en-US">Inventory [Abstract]</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract" xlink:to="siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract_lbl" xml:lang="en-US">Estimated Useful Lives of Property and Equipment [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract_lbl" xml:lang="en-US">Estimated useful lives of Property and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentAbstract_lbl" xml:lang="en-US">Estimated useful lives of property and equipment.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock" xlink:to="siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock_lbl" xml:lang="en-US">Estimated Useful Lives of Property and Equipment [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock_lbl" xml:lang="en-US">Estimated depreciable lives of Property and Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EstimatedUsefulLivesOfPropertyAndEquipmentTableTextBlock_lbl" xml:lang="en-US">Estimated useful lives of property and equipment.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="lab_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xml:lang="en-US">Earnings per Share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="us-gaap_ReceivablesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesAbstract" xlink:to="lab_ReceivablesAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ReceivablesAbstract" xml:lang="en-US">Accounts Receivable [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivablesTextBlock" xlink:label="us-gaap_FinancingReceivablesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingReceivablesTextBlock" xlink:to="lab_FinancingReceivablesTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_FinancingReceivablesTextBlock" xml:lang="en-US">Financing Receivables [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_FinancingReceivablesTextBlock" xml:lang="en-US">Accounts Receivable</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts" xlink:label="siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts" xlink:to="siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts_lbl" xml:lang="en-US">Other Than Temporary Impairment Charge Including Restructuring Impairments and Related Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts_lbl" xml:lang="en-US">Other than temporary impairment charge included restructuring, impairments, and related costs.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_OtherThanTemporaryImpairmentChargeIncludingRestructuringImpairmentsAndRelatedCosts_lbl" xml:lang="en-US">Other than temporary impairment charge included restructuring, impairments, and related costs</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PresentationOfComprehensiveIncomePolicyTextBlock" xlink:label="siri_PresentationOfComprehensiveIncomePolicyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PresentationOfComprehensiveIncomePolicyTextBlock" xlink:to="siri_PresentationOfComprehensiveIncomePolicyTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PresentationOfComprehensiveIncomePolicyTextBlock_lbl" xml:lang="en-US">Presentation of Comprehensive Income [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PresentationOfComprehensiveIncomePolicyTextBlock_lbl" xml:lang="en-US">Presentation of Comprehensive Income (ASU 2011-05)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PresentationOfComprehensiveIncomePolicyTextBlock_lbl" xml:lang="en-US">Presentation Of Comprehensive Income</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SatelliteNetworkOperationalPeriodFromInception" xlink:label="siri_SatelliteNetworkOperationalPeriodFromInception" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SatelliteNetworkOperationalPeriodFromInception" xlink:to="siri_SatelliteNetworkOperationalPeriodFromInception_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SatelliteNetworkOperationalPeriodFromInception_lbl" xml:lang="en-US">Satellite Network Operational Period from Inception</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteNetworkOperationalPeriodFromInception_lbl" xml:lang="en-US">Satellite network operation period from inception</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SatelliteNetworkOperationalPeriodFromInception_lbl" xml:lang="en-US">Satellite network operational period from inception.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_WeightingAssignedToHistoricalVolatility" xlink:label="siri_WeightingAssignedToHistoricalVolatility" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_WeightingAssignedToHistoricalVolatility" xlink:to="siri_WeightingAssignedToHistoricalVolatility_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_WeightingAssignedToHistoricalVolatility_lbl" xml:lang="en-US">Weighting Assigned to Historical Volatility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_WeightingAssignedToHistoricalVolatility_lbl" xml:lang="en-US">Weighting assigned to historical volatility.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_WeightingAssignedToHistoricalVolatility_lbl" xml:lang="en-US">Weighting assigned to historical volatility</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:to="lab_WeightedAverageNumberDilutedSharesOutstandingAdjustment" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xml:lang="en-US">Weighted Average Number Diluted Shares Outstanding Adjustment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xml:lang="en-US">Weighted Average Number Diluted Shares Outstanding Adjustment, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xml:lang="en-US">Dilutive effect of equity instruments</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_IntangibleAssetsAdditionalTextualAbstract" xlink:label="siri_IntangibleAssetsAdditionalTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_IntangibleAssetsAdditionalTextualAbstract" xlink:to="siri_IntangibleAssetsAdditionalTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_IntangibleAssetsAdditionalTextualAbstract_lbl" xml:lang="en-US">Intangible Assets (Additional Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_IntangibleAssetsAdditionalTextualAbstract_lbl" xml:lang="en-US">Intangible assets (Additional Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_IntangibleAssetsAdditionalTextualAbstract_lbl" xml:lang="en-US">Intangible assets.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_PropertyAndEquipmentTextualAbstract" xlink:label="siri_PropertyAndEquipmentTextualAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PropertyAndEquipmentTextualAbstract" xlink:to="siri_PropertyAndEquipmentTextualAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PropertyAndEquipmentTextualAbstract_lbl" xml:lang="en-US">Property and Equipment (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PropertyAndEquipmentTextualAbstract_lbl" xml:lang="en-US">Property and equipment (Textual) [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PropertyAndEquipmentTextualAbstract_lbl" xml:lang="en-US">Property and equipment.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisposals" xlink:label="us-gaap_PropertyPlantAndEquipmentDisposals" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDisposals" xlink:to="lab_PropertyPlantAndEquipmentDisposals" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PropertyPlantAndEquipmentDisposals" xml:lang="en-US">Property, Plant and Equipment, Disposals</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentDisposals" xml:lang="en-US">Cost of retired property and equipment</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_InterestCostsDisclosureAbstract" xlink:label="siri_InterestCostsDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_InterestCostsDisclosureAbstract" xlink:to="siri_InterestCostsDisclosureAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_InterestCostsDisclosureAbstract_lbl" xml:lang="en-US">Interest Costs Disclosure [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_InterestCostsDisclosureAbstract_lbl" xml:lang="en-US">Interest costs.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NumberOfOwnedSatellites" xlink:label="siri_NumberOfOwnedSatellites" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NumberOfOwnedSatellites" xlink:to="siri_NumberOfOwnedSatellites_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NumberOfOwnedSatellites_lbl" xml:lang="en-US">Number of Owned Satellites</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NumberOfOwnedSatellites_lbl" xml:lang="en-US">Number of owned satellites.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NumberOfOwnedSatellites_lbl" xml:lang="en-US">Number of owned satellites</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantOneMember" xlink:label="siri_ClassOfWarrantOneMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantOneMember" xlink:to="siri_ClassOfWarrantOneMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantOneMember_lbl" xml:lang="en-US">Class of Warrant One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantOneMember_lbl" xml:lang="en-US">NFL [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantOneMember_lbl" xml:lang="en-US">Class of warrant one.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantTwoMember" xlink:label="siri_ClassOfWarrantTwoMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantTwoMember" xlink:to="siri_ClassOfWarrantTwoMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantTwoMember_lbl" xml:lang="en-US">Class of Warrant Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantTwoMember_lbl" xml:lang="en-US">DaimlerChrysler AG [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantTwoMember_lbl" xml:lang="en-US">Class of warrant two.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantThreeMember" xlink:label="siri_ClassOfWarrantThreeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantThreeMember" xlink:to="siri_ClassOfWarrantThreeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantThreeMember_lbl" xml:lang="en-US">Class of Warrant Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantThreeMember_lbl" xml:lang="en-US">Ford [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantThreeMember_lbl" xml:lang="en-US">Class of warrant three.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantFourMember" xlink:label="siri_ClassOfWarrantFourMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantFourMember" xlink:to="siri_ClassOfWarrantFourMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantFourMember_lbl" xml:lang="en-US">Class of Warrant Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantFourMember_lbl" xml:lang="en-US">Lehman Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantFourMember_lbl" xml:lang="en-US">Class of warrant four.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantFiveMember" xlink:label="siri_ClassOfWarrantFiveMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantFiveMember" xlink:to="siri_ClassOfWarrantFiveMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantFiveMember_lbl" xml:lang="en-US">Class of Warrant Five [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantFiveMember_lbl" xml:lang="en-US">Space Systems/Loral [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantFiveMember_lbl" xml:lang="en-US">Class of warrant five.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantSixMember" xlink:label="siri_ClassOfWarrantSixMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantSixMember" xlink:to="siri_ClassOfWarrantSixMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantSixMember_lbl" xml:lang="en-US">Class of Warrant Six [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantSixMember_lbl" xml:lang="en-US">Other distributors and programming providers [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantSixMember_lbl" xml:lang="en-US">Class of warrant six.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="lab_ClassOfWarrantOrRightOutstanding" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfWarrantOrRightOutstanding" xml:lang="en-US">Class of Warrant or Right, Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ClassOfWarrantOrRightOutstanding" xml:lang="en-US">Warrants outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:to="lab_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xml:lang="en-US">Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xml:lang="en-US">Summary of warrants issued to purchase shares of common stock in connection with distribution, programming and satellite purchase agreements and certain debt issuances</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_WarrantsIssuanceRelatedExpense" xlink:label="siri_WarrantsIssuanceRelatedExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_WarrantsIssuanceRelatedExpense" xlink:to="siri_WarrantsIssuanceRelatedExpense_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_WarrantsIssuanceRelatedExpense_lbl" xml:lang="en-US">Warrants Issuance Related Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_WarrantsIssuanceRelatedExpense_lbl" xml:lang="en-US">Warrants issuance related expense.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_WarrantsIssuanceRelatedExpense_lbl" xml:lang="en-US">Warrants issuance related expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfWarrantOrRightTable" xlink:label="us-gaap_ClassOfWarrantOrRightTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightTable" xlink:to="lab_ClassOfWarrantOrRightTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfWarrantOrRightTable" xml:lang="en-US">Class of Warrant or Right [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="us-gaap_ClassOfWarrantOrRightAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="lab_ClassOfWarrantOrRightAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfWarrantOrRightAxis" xml:lang="en-US">Class of Warrant or Right [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="us-gaap_ClassOfWarrantOrRightDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="lab_ClassOfWarrantOrRightDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfWarrantOrRightDomain" xml:lang="en-US">Class of Warrant or Right [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RangeAxis" xlink:label="us-gaap_RangeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeAxis" xlink:to="lab_RangeAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RangeAxis" xml:lang="en-US">Range [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RangeMember" xlink:label="us-gaap_RangeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeMember" xlink:to="lab_RangeMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RangeMember" xml:lang="en-US">Range [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MaximumMember" xlink:label="us-gaap_MaximumMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MaximumMember" xlink:to="lab_MaximumMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_MaximumMember" xml:lang="en-US">Maximum [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MinimumMember" xlink:label="us-gaap_MinimumMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinimumMember" xlink:to="lab_MinimumMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_MinimumMember" xml:lang="en-US">Minimum [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfWarrantOrRightLineItems" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightLineItems" xlink:to="lab_ClassOfWarrantOrRightLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ClassOfWarrantOrRightLineItems" xml:lang="en-US">Class of Warrant or Right [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WarrantsAndRightsNoteDisclosureAbstract" xlink:label="us-gaap_WarrantsAndRightsNoteDisclosureAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsNoteDisclosureAbstract" xlink:to="lab_WarrantsAndRightsNoteDisclosureAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_WarrantsAndRightsNoteDisclosureAbstract" xml:lang="en-US">Warrants and Rights Note Disclosure [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_WarrantsAndRightsNoteDisclosureAbstract" xml:lang="en-US">Summary of warrants issued to purchase shares of common stock in connection with distribution, programming and satellite purchase agreements and certain debt issuances</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xml:lang="en-US">Risk-free interest rate, minimum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xml:lang="en-US">Risk-free interest rate, maximum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMinimum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMinimum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMinimum" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMinimum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMinimum" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term, Minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMinimum" xml:lang="en-US">Expected life-years, minimum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMaximum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMaximum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMaximum" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMaximum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMaximum" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term, Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTermMaximum" xml:lang="en-US">Expected life-years, maximum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xml:lang="en-US">Expected stock price volatility, minimum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xml:lang="en-US">Expected stock price volatility, maximum</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ClassOfWarrantOrRightsExpirationDate" xlink:label="siri_ClassOfWarrantOrRightsExpirationDate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ClassOfWarrantOrRightsExpirationDate" xlink:to="siri_ClassOfWarrantOrRightsExpirationDate_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ClassOfWarrantOrRightsExpirationDate_lbl" xml:lang="en-US">Class of Warrant or Rights Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ClassOfWarrantOrRightsExpirationDate_lbl" xml:lang="en-US">Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ClassOfWarrantOrRightsExpirationDate_lbl" xml:lang="en-US">Class of warrant or rights expiration date.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="us-gaap_OperatingLeasesRentExpenseNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesRentExpenseNet" xlink:to="lab_OperatingLeasesRentExpenseNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OperatingLeasesRentExpenseNet" xml:lang="en-US">Operating Leases, Rent Expense, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OperatingLeasesRentExpenseNet" xml:lang="en-US">Total rent recognized from lease</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember" xlink:label="siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember" xlink:to="siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember_lbl" xml:lang="en-US">Three Point Two Five Percent Convertible Notes Due Two Thousand Eleven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember_lbl" xml:lang="en-US">3.25% Convertible Notes due 2011 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ThreePointTwoFivePercentConvertibleNotesDueTwoThousandElevenMember_lbl" xml:lang="en-US">Three point two five percent convertible notes due two thousand eleven.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember" xlink:label="siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember" xlink:to="siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember_lbl" xml:lang="en-US">Eight Point Seven Five Percent Senior Notes Two Thousand Fifteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember_lbl" xml:lang="en-US">8.75% Senior Notes due 2015 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EightPointSevenFivePercentSeniorNotesTwoThousandFifteenMember_lbl" xml:lang="en-US">Eight point seven five percent senior notes two thousand fifteen.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember" xlink:label="siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember" xlink:to="siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember_lbl" xml:lang="en-US">Nine Point Seven Five Percent Senior Notes Due Two Thousand Fifteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember_lbl" xml:lang="en-US">9.75% Senior Secured Notes due 2015 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_NinePointSevenFivePercentSeniorNotesDueTwoThousandFifteenMember_lbl" xml:lang="en-US">Nine point seven five percent senior notes due two thousand fifteen.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember" xlink:label="siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember" xlink:to="siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember_lbl" xml:lang="en-US">Eleven Point Two Five Percent Senior Secured Notes Due Two Thousand Thirteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember_lbl" xml:lang="en-US">11.25% Senior Secured Notes due 2013 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ElevenPointTwoFivePercentSeniorSecuredNotesDueTwoThousandThirteenMember_lbl" xml:lang="en-US">Eleven point two five percent senior secured notes due two thousand thirteen.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember" xlink:label="siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember" xlink:to="siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember_lbl" xml:lang="en-US">Thirteen Percent Senior Notes Due Two Thousand Thirteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember_lbl" xml:lang="en-US">13% Senior Notes due 2013 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ThirteenPercentSeniorNotesDueTwoThousandThirteenMember_lbl" xml:lang="en-US">Thirteen percent senior notes due two thousand thirteen.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember" xlink:label="siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember" xlink:to="siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember_lbl" xml:lang="en-US">Seven Percent Exchangeable Senior Subordinated Notes Due Two Thousand Fourteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember_lbl" xml:lang="en-US">7% Exchangeable Senior Subordinated Notes due 2014 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SevenPercentExchangeableSeniorSubordinatedNotesDueTwoThousandFourteenMember_lbl" xml:lang="en-US">even percent exchangeable senior subordinated notes due two thousand fourteen.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember" xlink:label="siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember" xlink:to="siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember_lbl" xml:lang="en-US">Seven Point Six Two Five Percent Senior Notes Due Two Thousand Eighteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember_lbl" xml:lang="en-US">7.625% Senior Notes due 2018 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SevenPointSixTwoFivePercentSeniorNotesDueTwoThousandEighteenMember_lbl" xml:lang="en-US">Seven point six two five percent senior notes due two thousand eighteen.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:to="lab_CommonStockCapitalSharesReservedForFutureIssuance" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_CommonStockCapitalSharesReservedForFutureIssuance" xml:lang="en-US">common stock available for future grants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_CommonStockCapitalSharesReservedForFutureIssuance" xml:lang="en-US">Common Stock, Capital Shares Reserved for Future Issuance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_CommonStockCapitalSharesReservedForFutureIssuance" xml:lang="en-US">Common stock reserved for issuance</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues" xlink:to="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues_lbl" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award Equity Instruments Other than Options Vested in Period Intrinsic Values</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues_lbl" xml:lang="en-US">Total intrinsic value of restricted stock and restricted stock units that vested</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodIntrinsicValues_lbl" xml:lang="en-US">The intrinsic value of equity-based payment equity instruments, excluding stock or unit options, granted during the reporting period as calculated by applying the disclosed option pricing methodology.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xml:lang="en-US">Summary of nonvested restricted stock and restricted stock unit activity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xml:lang="en-US">Stock options activity under share based payment plans</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_QuarterlyFinancialDataAbstract" xlink:label="us-gaap_QuarterlyFinancialDataAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_QuarterlyFinancialDataAbstract" xlink:to="lab_QuarterlyFinancialDataAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_QuarterlyFinancialDataAbstract" xml:lang="en-US">Quarterly Financial Data [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_QuarterlyFinancialDataAbstract" xml:lang="en-US">Quarterly results of operations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LossContingenciesTable" xlink:label="us-gaap_LossContingenciesTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingenciesTable" xlink:to="lab_LossContingenciesTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LossContingenciesTable" xml:lang="en-US">Loss Contingencies [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="us-gaap_LossContingenciesLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingenciesLineItems" xlink:to="lab_LossContingenciesLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LossContingenciesLineItems" xml:lang="en-US">Loss Contingencies [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsMember" xlink:label="us-gaap_AllowanceForDoubtfulAccountsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForDoubtfulAccountsMember" xlink:to="lab_AllowanceForDoubtfulAccountsMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AllowanceForDoubtfulAccountsMember" xml:lang="en-US">Allowance for Doubtful Accounts [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AllowanceForDoubtfulAccountsMember" xml:lang="en-US">Allowance for doubtful accounts [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xlink:label="us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xlink:to="lab_ValuationAllowanceOfDeferredTaxAssetsMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowanceOfDeferredTaxAssetsMember" xml:lang="en-US">Valuation Allowance of Deferred Tax Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ValuationAllowanceOfDeferredTaxAssetsMember" xml:lang="en-US">Deferred tax assets-valuation allowance [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xlink:label="us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xlink:to="lab_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xml:lang="en-US">Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xml:lang="en-US">Schedule of Valuation and Qualifying Accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:label="us-gaap_ValuationAndQualifyingAccountsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:to="lab_ValuationAndQualifyingAccountsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAndQualifyingAccountsAbstract" xml:lang="en-US">Schedule of Valuation and Qualifying Accounts [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:label="us-gaap_MovementInValuationAllowancesAndReservesRollForward" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:to="lab_MovementInValuationAllowancesAndReservesRollForward" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_MovementInValuationAllowancesAndReservesRollForward" xml:lang="en-US">Movement in Valuation Allowances and Reserves [Roll Forward]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_MovementInValuationAllowancesAndReservesRollForward" xml:lang="en-US">Schedule of Valuation and Qualifying Accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="us-gaap_ValuationAllowancesAndReservesBalance" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesBalance" xlink:to="lab_ValuationAllowancesAndReservesBalance" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowancesAndReservesBalance" xml:lang="en-US">Valuation Allowances and Reserves, Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_ValuationAllowancesAndReservesBalance" xml:lang="en-US">Balance, December 31</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_ValuationAllowancesAndReservesBalance" xml:lang="en-US">Balance, January 1</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:label="us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:to="lab_ValuationAllowancesAndReservesChargedToCostAndExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowancesAndReservesChargedToCostAndExpense" xml:lang="en-US">Valuation Allowances and Reserves, Charged to Cost and Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ValuationAllowancesAndReservesChargedToCostAndExpense" xml:lang="en-US">Valuation Allowances and Reserves, Charged to Cost and Expense, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ValuationAllowancesAndReservesChargedToCostAndExpense" xml:lang="en-US">Charged to Expenses (Benefit)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDeductions" xlink:label="us-gaap_ValuationAllowancesAndReservesDeductions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesDeductions" xlink:to="lab_ValuationAllowancesAndReservesDeductions" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowancesAndReservesDeductions" xml:lang="en-US">Valuation Allowances and Reserves, Deductions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ValuationAllowancesAndReservesDeductions" xml:lang="en-US">Write-offs/Payments/Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_ValuationAllowancesAndReservesDeductions" xml:lang="en-US">Valuation Allowances and Reserves, Deductions, Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureTable" xlink:label="us-gaap_ValuationAndQualifyingAccountsDisclosureTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAndQualifyingAccountsDisclosureTable" xlink:to="lab_ValuationAndQualifyingAccountsDisclosureTable" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAndQualifyingAccountsDisclosureTable" xml:lang="en-US">Valuation and Qualifying Accounts Disclosure [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="us-gaap_ValuationAllowancesAndReservesTypeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:to="lab_ValuationAllowancesAndReservesTypeAxis" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowancesAndReservesTypeAxis" xml:lang="en-US">Valuation Allowances and Reserves Type [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="us-gaap_ValuationAllowancesAndReservesDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesDomain" xlink:to="lab_ValuationAllowancesAndReservesDomain" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowancesAndReservesDomain" xml:lang="en-US">Valuation Allowances and Reserves [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" xlink:label="us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" xlink:to="lab_ValuationAndQualifyingAccountsDisclosureLineItems" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAndQualifyingAccountsDisclosureLineItems" xml:lang="en-US">Valuation and Qualifying Accounts Disclosure [Line Items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US">Common stock available for future grants</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockCompensationPlanMember" xlink:label="us-gaap_StockCompensationPlanMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockCompensationPlanMember" xlink:to="lab_StockCompensationPlanMember" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockCompensationPlanMember" xml:lang="en-US">Stock Compensation Plan [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SummaryOfIncomeTaxContingenciesTextBlock" xlink:label="us-gaap_SummaryOfIncomeTaxContingenciesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SummaryOfIncomeTaxContingenciesTextBlock" xlink:to="lab_SummaryOfIncomeTaxContingenciesTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_SummaryOfIncomeTaxContingenciesTextBlock" xml:lang="en-US">Summary of Income Tax Contingencies [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SummaryOfIncomeTaxContingenciesTextBlock" xml:lang="en-US">Changes in our uncertain income tax positions</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_RightsPlanExpirationDate" xlink:label="siri_RightsPlanExpirationDate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RightsPlanExpirationDate" xlink:to="siri_RightsPlanExpirationDate_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RightsPlanExpirationDate_lbl" xml:lang="en-US">Rights Plan Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RightsPlanExpirationDate_lbl" xml:lang="en-US">Rights plan expiration date.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="us-gaap_UnrecognizedTaxBenefits" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefits" xlink:to="lab_UnrecognizedTaxBenefits" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UnrecognizedTaxBenefits" xml:lang="en-US">Unrecognized Tax Benefits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_UnrecognizedTaxBenefits" xml:lang="en-US">Balance, end of year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_UnrecognizedTaxBenefits" xml:lang="en-US">Balance, beginning of year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_UnrecognizedTaxBenefits" xml:lang="en-US">Uncertain state tax positions in other long term liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:to="lab_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xml:lang="en-US">Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xml:lang="en-US">Additions for tax positions from prior years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="us-gaap_OperatingLossCarryforwards" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLossCarryforwards" xlink:to="lab_OperatingLossCarryforwards" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OperatingLossCarryforwards" xml:lang="en-US">Operating Loss Carryforwards</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OperatingLossCarryforwards" xml:lang="en-US">Operating Loss Carryforwards, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OperatingLossCarryforwards" xml:lang="en-US">Net operating loss carryforwards</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireRestrictedInvestments" xlink:label="us-gaap_PaymentsToAcquireRestrictedInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireRestrictedInvestments" xlink:to="lab_PaymentsToAcquireRestrictedInvestments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PaymentsToAcquireRestrictedInvestments" xml:lang="en-US">Payments to Acquire Restricted Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_PaymentsToAcquireRestrictedInvestments" xml:lang="en-US">Purchase of restricted investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_PaymentsToAcquireRestrictedInvestments" xml:lang="en-US">New letter of credit agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_PaymentsToAcquireRestrictedInvestments" xml:lang="en-US">Payments to Acquire Restricted Investments, Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:to="lab_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xml:lang="en-US">Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xml:lang="en-US">Changes in our uncertain income tax positions</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_EstimatedTermOfSubscriberRelationship" xlink:label="siri_EstimatedTermOfSubscriberRelationship" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_EstimatedTermOfSubscriberRelationship" xlink:to="siri_EstimatedTermOfSubscriberRelationship_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_EstimatedTermOfSubscriberRelationship_lbl" xml:lang="en-US">Estimated Term of Subscriber Relationship</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_EstimatedTermOfSubscriberRelationship_lbl" xml:lang="en-US">Estimated term of a subscriber relationship.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_EstimatedTermOfSubscriberRelationship_lbl" xml:lang="en-US">Estimated term of a subscriber relationship</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="us-gaap_AmortizationOfIntangibleAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfIntangibleAssets" xlink:to="lab_AmortizationOfIntangibleAssets" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AmortizationOfIntangibleAssets" xml:lang="en-US">Amortization of Intangible Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AmortizationOfIntangibleAssets" xml:lang="en-US">Amortization of Intangible Assets, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AmortizationOfIntangibleAssets" xml:lang="en-US">Amortization expense related to equity method intangible assets</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" xlink:label="siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" xlink:to="siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Maximum Leverage Ratio after Incurrence of Indebtedness to Incur Additional Indebtedness</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Maximum Leverage Ratio after the incurrence of the indebtedness to incur additional indebtedness</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_MaximumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Maximum leverage ratio after incurrence of indebtedness to incur additional indebtedness.</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" xlink:label="siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness" xlink:to="siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Minimum Leverage Ratio after Incurrence of Indebtedness to Incur Additional Indebtedness</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Minimum Leverage Ratio after the incurrence of the indebtedness to incur additional indebtedness</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_MinimumLeverageRatioAfterIncurrenceOfIndebtednessToIncurAdditionalIndebtedness_lbl" xml:lang="en-US">Minimum leverage ratio after incurrence of indebtedness to incur additional indebtedness.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US">Stock Issued During Period, Value, New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US">Increase in paid-in-capital for Series B preferred stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US">Issuance of preferred stock - related party, net of issuance costs</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest" xlink:label="siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest" xlink:to="siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest_lbl" xml:lang="en-US">Unrecognized Tax Benefits Increase Resulting from Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest_lbl" xml:lang="en-US">Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_UnrecognizedTaxBenefitsIncreaseResultingFromInterest_lbl" xml:lang="en-US">Unrecognized tax benefits increase resulting from interest.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xlink:label="us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xlink:to="lab_ValuationAllowanceDeferredTaxAssetChangeInAmount" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">Valuation Allowance, Deferred Tax Asset, Change in Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">Change in valuation allowance</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsEquityMethodInvestments" xlink:label="us-gaap_DeferredTaxAssetsEquityMethodInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsEquityMethodInvestments" xlink:to="lab_DeferredTaxAssetsEquityMethodInvestments" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_DeferredTaxAssetsEquityMethodInvestments" xml:lang="en-US">Deferred Tax Assets, Equity Method Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_DeferredTaxAssetsEquityMethodInvestments" xml:lang="en-US">Investments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="us-gaap_GoodwillImpairmentLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillImpairmentLoss" xlink:to="lab_GoodwillImpairmentLoss" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GoodwillImpairmentLoss" xml:lang="en-US">Goodwill, Impairment Loss</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xlink:label="us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xlink:to="lab_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xml:lang="en-US">Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="us-gaap_ImpairmentOfIntangibleAssetsFinitelived" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:to="lab_ImpairmentOfIntangibleAssetsFinitelived" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ImpairmentOfIntangibleAssetsFinitelived" xml:lang="en-US">Impairment of Intangible Assets, Finite-lived</label>
    <loc xlink:type="locator" xlink:href="siri-20111231.xsd#siri_SummaryOfOrbitingSatellitesTableTextBlock" xlink:label="siri_SummaryOfOrbitingSatellitesTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SummaryOfOrbitingSatellitesTableTextBlock" xlink:to="siri_SummaryOfOrbitingSatellitesTableTextBlock_lbl" />
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