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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherNonoperatingIncomeExpenseAbstract" xml:lang="en-US">Other Nonoperating Income (Expense) [Abstract]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubscriberAcquisitionCosts_lbl" xml:lang="en-US">Hardware subsidies paid to radio manufacturers, distributors and automakers, including subsidies paid to automakers who include a radio and a prepaid subscription to our service in the sale or lease price of a new vehicle; subsidies paid for chip sets and certain other components used in manufacturing radios; commissions paid to retailers and automakers as incentives to purchase, install and activate radios; product warranty obligations; provisions for inventory allowance; and compensation costs associated with stock-based awards granted in connection with certain distribution agreements.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_ProgrammingAndContent_lbl" xml:lang="en-US">Programming and content</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_ProgrammingAndContent_lbl" xml:lang="en-US">Costs to acquire, create and produce content and on-air talent costs.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetIncomeLoss" xml:lang="en-US">Net Income (Loss) Attributable to Parent</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_NetIncomeLoss" xml:lang="en-US">Net income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NetIncomeLoss" xml:lang="en-US">Net income</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" />
    <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/totalLabel" xlink:label="lab_IncomeTaxExpenseBenefit" xml:lang="en-US">Income tax expense</label>
    <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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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpense" xlink:to="lab_NonoperatingIncomeExpense" />
    <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>
    <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>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="lab_OtherNonoperatingIncomeExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OtherNonoperatingIncomeExpense" xml:lang="en-US">Other income</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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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/totalLabel" xlink:label="lab_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Gains (Losses) on Extinguishment of Debt, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Loss on extinguishment of debt and credit facilities, net</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestExpense" xml:lang="en-US">Interest expense, net of amounts capitalized</label>
    <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/label" xlink:label="lab_InterestExpense" xml:lang="en-US">Interest Expense</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentIncomeInterestAndDividend" xlink:label="us-gaap_InvestmentIncomeInterestAndDividend" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InvestmentIncomeInterestAndDividend" xml:lang="en-US">Interest and investment loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InvestmentIncomeInterestAndDividend" xml:lang="en-US">Investment Income, Interest and Dividend</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_InvestmentIncomeInterestAndDividend" xml:lang="en-US">Interest and investment (loss) income</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="lab_OperatingIncomeLoss" />
    <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>
    <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/2003/role/totalLabel" xlink:label="lab_OperatingIncomeLoss" xml:lang="en-US">Income from operations</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_DepreciationAndAmortization" xml:lang="en-US">Depreciation and amortization</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_TechnologyServicesCosts" xml:lang="en-US">Technology Services Costs</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="us-gaap_SellingAndMarketingExpense" />
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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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherSalesRevenueNet" xlink:label="us-gaap_OtherSalesRevenueNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherSalesRevenueNet" xlink:to="lab_OtherSalesRevenueNet" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OtherSalesRevenueNet" xml:lang="en-US">Other revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherSalesRevenueNet" xml:lang="en-US">Other Sales Revenue, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdvertisingRevenue" xlink:label="us-gaap_AdvertisingRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdvertisingRevenue" xlink:to="lab_AdvertisingRevenue" />
    <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_AdvertisingRevenue" xml:lang="en-US">Advertising Revenue</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubscriptionRevenue" xlink:label="us-gaap_SubscriptionRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubscriptionRevenue" xlink:to="lab_SubscriptionRevenue" />
    <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/verboseLabel" xlink:label="lab_SubscriptionRevenue" xml:lang="en-US">Subscriber revenue</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_RevenuesAbstract" xml:lang="en-US">Revenue:</label>
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    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_IncomeStatementAbstract" xml:lang="en-US">Statement of Operations</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="lab_Assets" />
    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="lab_OtherAssetsNoncurrent" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OtherAssetsNoncurrent" xml:lang="en-US">Other long-term assets</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_DueFromRelatedPartiesNoncurrent" xml:lang="en-US">Due from Related Parties, Noncurrent, Total</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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IntangibleAssetsNetExcludingGoodwill" xml:lang="en-US">Intangible assets, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_IntangibleAssetsNetExcludingGoodwill" xml:lang="en-US">Intangible Assets, Net (Excluding Goodwill), Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IntangibleAssetsNetExcludingGoodwill" xml:lang="en-US">Intangible Assets, Net (Excluding Goodwill)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredFinanceCostsNoncurrentNet" xlink:label="us-gaap_DeferredFinanceCostsNoncurrentNet" />
    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_RestrictedInvestmentsNoncurrent" xml:lang="en-US">Long-term restricted investments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" 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/totalLabel" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net, Total</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/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/label" xlink:label="lab_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_AssetsCurrent" xml:lang="en-US">Total current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_AssetsCurrent" xml:lang="en-US">Assets, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AssetsCurrent" xml:lang="en-US">Assets, Current</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_OtherAssetsCurrent" xml:lang="en-US">Other current assets</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" 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">Inventory, Net, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InventoryNet" xml:lang="en-US">Inventory, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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>
    <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/label" xlink:label="lab_DueFromRelatedPartiesCurrent" xml:lang="en-US">Due from Related Parties, Current</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_AccountsReceivableNetCurrent" xml:lang="en-US">Accounts Receivable, Net, Current, Total</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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 Convertible Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SeriesAPreferredStockMember" xml:lang="en-US">Preferred stock, par value $0.001; 50,000,000 authorized at September 30, 2010 and December 31, 2009: Series A convertible preferred stock (liquidation preference of $0 at September 31, 2010 and $51,370 at December 31, 2009); no shares issued and outstanding at September 30, 2010 and 24,808,959 shares issued and outstanding at December 31, 2009</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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">Convertible Perpetual Preferred Stock, Series B-1</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 (liquidation preference of $13 at September 30, 2010 and December 31, 2009); 12,500,000 shares issued and outstanding at September 30, 2010 and December 31, 2009</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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">Convertible preferred stock, Series C junior</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_SeriesCPreferredStockMember" xml:lang="en-US">Convertible preferred stock, series C junior; no shares issued and outstanding at September 30, 2010 and December 31, 2009</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common stock, par value $0.001; 9,000,000,000 shares authorized at March 31, 2011 and December 31, 2010; 3,943,060,217 and 3,933,195,112 shares issued and outstanding at March 31, 2011 and December 31, 2010</label>
    <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/totalLabel" xlink:label="lab_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated other comprehensive loss, net of tax</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/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/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/label" xlink:label="lab_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Accumulated deficit</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/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/label" xlink:label="lab_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_StockholdersEquity" xml:lang="en-US">Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_StockholdersEquity" xml:lang="en-US">Total stockholders' equity</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Liabilities and Stockholders' Equity</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Total liabilities and stockholder's equity</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommitmentsAndContingencies2009" xlink:label="us-gaap_CommitmentsAndContingencies2009" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_AccountsPayableAndAccruedLiabilitiesCurrent" 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_AccountsPayableAndAccruedLiabilitiesCurrent" xml:lang="en-US">Accounts Payable and Accrued Liabilities, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_AccountsPayableAndAccruedLiabilitiesCurrent" xml:lang="en-US">Accounts Payable and Accrued Liabilities, Current</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="us-gaap_DeferredRevenueCurrent" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueCurrent" xlink:to="lab_DeferredRevenueCurrent" />
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="us-gaap_DueToRelatedPartiesCurrent" />
    <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/totalLabel" xlink:label="lab_DueToRelatedPartiesCurrent" xml:lang="en-US">Related party current liabilities</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_LiabilitiesCurrent" xml:lang="en-US">Total current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_LiabilitiesCurrent" xml:lang="en-US">Liabilities, Current, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_LiabilitiesCurrent" xml:lang="en-US">Liabilities, Current</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_DeferredRevenueNoncurrent" xml:lang="en-US">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/label" xlink:label="lab_DeferredRevenueNoncurrent" xml:lang="en-US">Deferred Revenue, Noncurrent</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DueToRelatedPartiesNoncurrent" xlink:label="us-gaap_DueToRelatedPartiesNoncurrent" />
    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_OtherLiabilitiesNoncurrent" xml:lang="en-US">Other long-term liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_OtherLiabilitiesNoncurrent" xml:lang="en-US">Other long-term liabilities</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" 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/label" xlink:label="lab_PreferredStockSharesAuthorized" xml:lang="en-US">Preferred Stock, Shares Authorized</label>
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    <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/verboseLabel" 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/totalLabel" xlink:label="lab_PreferredStockSharesIssued" xml:lang="en-US">Preferred Stock, Shares Issued, Total</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" 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/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/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/label" xlink:label="lab_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred Stock, Shares Outstanding</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" />
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    <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>
    <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>
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    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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="siri-20110331.xsd#siri_BusinessAbstract" xlink:label="siri_BusinessAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_BusinessAbstract" xlink:to="siri_BusinessAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_BusinessAbstract_lbl" xml:lang="en-US">Business [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_BusinessAbstract_lbl" xml:lang="en-US">Business.</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GeneralPoliciesAbstract" xlink:label="us-gaap_GeneralPoliciesAbstract" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_GeneralPoliciesAbstract" xml:lang="en-US">Summary of Significant Accounting Policies [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_GeneralPoliciesAbstract" xml:lang="en-US">Principles of Consolidation and Basis of Presentation</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" />
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    <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>
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    <loc xlink:type="locator" xlink:href="siri-20110331.xsd#siri_GoodwillAbstract" xlink:label="siri_GoodwillAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_GoodwillAbstract" xlink:to="siri_GoodwillAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_GoodwillAbstract_lbl" xml:lang="en-US">Goodwill [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_GoodwillAbstract_lbl" xml:lang="en-US">Goodwill.</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock" xlink:label="us-gaap_ScheduleOfGoodwillTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfGoodwillTextBlock" xlink:to="lab_ScheduleOfGoodwillTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfGoodwillTextBlock" xml:lang="en-US">Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfGoodwillTextBlock" xml:lang="en-US">Schedule of Goodwill [Text Block]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:to="lab_IntangibleAssetsNetExcludingGoodwillAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IntangibleAssetsNetExcludingGoodwillAbstract" xml:lang="en-US">Intangible Assets [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IntangibleAssetsNetExcludingGoodwillAbstract" xml:lang="en-US">Intangible Assets</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:to="lab_IntangibleAssetsDisclosureTextBlock" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IntangibleAssetsDisclosureTextBlock" xml:lang="en-US">Intangible Assets</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US">Property and Equipment</label>
    <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/verboseLabel" xlink:label="lab_PropertyPlantAndEquipmentAbstract" xml:lang="en-US">Property and Equipment</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.xsd#siri_CommitmentsAndContingenciesAbstract" xlink:label="siri_CommitmentsAndContingenciesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommitmentsAndContingenciesAbstract" xlink:to="siri_CommitmentsAndContingenciesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">Commitments and Contingencies [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">Commitments and Contingencies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">Commitments and Contingencies</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="lab_CommitmentsAndContingenciesDisclosureTextBlock" />
    <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="siri-20110331.xsd#siri_DebtAbstract" xlink:label="siri_DebtAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_DebtAbstract" xlink:to="siri_DebtAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_DebtAbstract_lbl" xml:lang="en-US">Debt [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_DebtAbstract_lbl" xml:lang="en-US">Debt.</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" />
    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="us-gaap_StockholdersEquityNoteAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteAbstract" xlink:to="lab_StockholdersEquityNoteAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_StockholdersEquityNoteAbstract" xml:lang="en-US">Stockholders? Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StockholdersEquityNoteAbstract" xml:lang="en-US">Stockholders' Equity [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestCostsIncurredAbstract" xlink:label="us-gaap_InterestCostsIncurredAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestCostsIncurredAbstract" xlink:to="lab_InterestCostsIncurredAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InterestCostsIncurredAbstract" xml:lang="en-US">Interest Costs [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestCostsIncurredAbstract" xml:lang="en-US">Interest Costs</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitExpenseAbstract" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitExpenseAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PensionAndOtherPostretirementBenefitExpenseAbstract" xlink:to="lab_PensionAndOtherPostretirementBenefitExpenseAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_PensionAndOtherPostretirementBenefitExpenseAbstract" xml:lang="en-US">Benefits Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PensionAndOtherPostretirementBenefitExpenseAbstract" xml:lang="en-US">Benefits Plans [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xml:lang="en-US">Pension and Other Postretirement Benefits Disclosure [Text Block]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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">UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestPaidNetAbstract" xlink:label="us-gaap_InterestPaidNetAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNetAbstract" xlink:to="lab_InterestPaidNetAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_InterestPaidNetAbstract" xml:lang="en-US">Cash paid during the period for:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InterestPaidNetAbstract" xml:lang="en-US">Interest Paid, Net [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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 (used in) operating activities:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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 (used in) operating activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
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    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred income taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred Income Tax Expense (Benefit), Total</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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/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/verboseLabel" xlink:label="lab_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net cash (used in) provided by investing activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US">Cash flows from financing activities:</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="lab_NetCashProvidedByUsedInFinancingActivities" />
    <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) provided by financing activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" 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/totalLabel" xlink:label="lab_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayments of Long-term Debt, Total</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/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-20110331.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>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="lab_InterestExpense" xml:lang="en-US">Interest expense, net of amounts capitalized</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_OtherComprehensiveIncomeLossTaxAbstract" xml:lang="en-US">Other comprehensive income:</label>
    <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://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="lab_IncomeTaxExpenseBenefit" xml:lang="en-US">Income tax expense</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="lab_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayment of long-term borrowings</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Net decrease in cash and cash equivalents</label>
    <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>
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    <loc xlink:type="locator" xlink:href="siri-20110331.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/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>
    <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>
    <loc xlink:type="locator" xlink:href="siri-20110331.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" />
    <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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_StatementOfStockholdersEquityAbstract" xml:lang="en-US">UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY AND COMPREHENSIVE INCOME [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.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/documentation" xlink:label="siri_ReceivablesFromDistributors_lbl" xml:lang="en-US">Amounts due from OEMs and other distributors.</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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_InterestPayableCurrent" xml:lang="en-US">Accrued interest</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" 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/label" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Long-term Debt and Capital Lease Obligations</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="lab_LongTermDebtAndCapitalLeaseObligations" xml:lang="en-US">Long-term Debt and Capital Lease Obligations, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <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="siri-20110331.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_SalesRevenueNet" xml:lang="en-US">Total revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_SalesRevenueNet" xml:lang="en-US">Sales Revenue, Net, Total</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" 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/label" xlink:label="lab_CostsAndExpenses" xml:lang="en-US">Costs and Expenses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/verboseLabel" xlink:label="lab_PaidInKindInterest" xml:lang="en-US">Non-cash interest expense, net of amortization of premium</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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/totalLabel" xlink:label="lab_GainLossOnDispositionOfAssets" xml:lang="en-US">Gain (Loss) on Disposition of Assets, Total</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherNoncashExpense" xlink:label="us-gaap_OtherNoncashExpense" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNoncashExpense" xlink:to="lab_OtherNoncashExpense" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_OtherNoncashExpense" xml:lang="en-US">Other non-cash purchase price adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_OtherNoncashExpense" xml:lang="en-US">Other Noncash Expense</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://xbrl.us/us-gaap/role/label/negated" 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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInInterestPayableNet" xml:lang="en-US">Increase (Decrease) in Interest Payable, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Other long-term liabilities</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:to="lab_ProceedsFromSaleMaturityAndCollectionsOfInvestments" />
    <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/totalLabel" xlink:label="lab_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xml:lang="en-US">Sale of restricted and other 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="siri-20110331.xsd#siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract" xlink:label="siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract" xlink:to="siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract_lbl" xml:lang="en-US">Principles of Consolidation and Basis of Presentation [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract_lbl" xml:lang="en-US">Principles of Consolidation and Basis of Presentation [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_PrinciplesOfConsolidationAndBasisOfPresentationAbstract_lbl" xml:lang="en-US">Principles of Consolidation and Basis of Presentation [Abstract].</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:label="us-gaap_RelatedPartyTransactionDueFromToRelatedPartyAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:to="lab_RelatedPartyTransactionDueFromToRelatedPartyAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_RelatedPartyTransactionDueFromToRelatedPartyAbstract" xml:lang="en-US">Related Party Transactions [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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://xbrl.us/us-gaap/role/label/negated" 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">Foreign currency translation adjustment, net of tax of $57</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentsAbstract" xlink:label="us-gaap_InvestmentsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentsAbstract" xlink:to="lab_InvestmentsAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_InvestmentsAbstract" xml:lang="en-US">Investments [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_NatureOfOperations" xml:lang="en-US">Nature of Operations [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_NatureOfOperations" xml:lang="en-US">Business</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="us-gaap_EarningsPerShareAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="lab_EarningsPerShareAbstract" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_EarningsPerShareAbstract" xml:lang="en-US">Net income per common share:</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_EarningsPerShareBasic" xml:lang="en-US">Basic</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Basic</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="us-gaap_EarningsPerShareDiluted" />
    <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/totalLabel" xlink:label="lab_EarningsPerShareDiluted" xml:lang="en-US">Diluted</label>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="lab_WeightedAverageNumberOfDilutedSharesOutstanding" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" 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_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.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>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_SatelliteAndTransmission_lbl" xml:lang="en-US">Satellite and transmission</label>
    <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-20110331.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-20110331.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-20110331.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://xbrl.us/us-gaap/role/label/negated" 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/verboseLabel" 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/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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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-20110331.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-20110331.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-20110331.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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">Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US">Total comprehensive income</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.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://xbrl.us/us-gaap/role/label/negated" 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-20110331.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/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>
    <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>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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-20110331.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://xbrl.us/us-gaap/role/label/negated" 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/verboseLabel" 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-20110331.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>
    <loc xlink:type="locator" xlink:href="siri-20110331.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://xbrl.us/us-gaap/role/label/negated" xlink:label="siri_LossOnEquityInvestments_lbl" xml:lang="en-US">Loss on investments, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_LossOnEquityInvestments_lbl" xml:lang="en-US">Loss on investments</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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-20110331.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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/totalLabel" xlink:label="lab_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax" xml:lang="en-US">Other Comprehensive Income, Foreign Currency Translation Adjustment, Tax, Total</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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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" />
    <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/terseLabel" xlink:label="lab_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" 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_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Compensation in connection with the issuance of stock-based awards</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.xsd#siri_SubsequentEventsAbstract" xlink:label="siri_SubsequentEventsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_SubsequentEventsAbstract" xlink:to="siri_SubsequentEventsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_SubsequentEventsAbstract_lbl" xml:lang="en-US">Subsequent Events [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_SubsequentEventsAbstract_lbl" xml:lang="en-US">Subsequent Events.</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfSubsequentEventsTextBlock" xlink:label="us-gaap_ScheduleOfSubsequentEventsTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_ScheduleOfSubsequentEventsTextBlock" xml:lang="en-US">Schedule of Subsequent Events [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_ScheduleOfSubsequentEventsTextBlock" xml:lang="en-US">Subsequent Events</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xlink:label="us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xlink:to="lab_IncreaseDecreaseInRestrictedCashForOperatingActivities" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_IncreaseDecreaseInRestrictedCashForOperatingActivities" xml:lang="en-US">Increase (Decrease) in Restricted Cash for Operating Activities</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="lab_IncreaseDecreaseInRestrictedCashForOperatingActivities" xml:lang="en-US">Long-term restricted investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_IncreaseDecreaseInRestrictedCashForOperatingActivities" xml:lang="en-US">Restricted cash</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.xsd#siri_RestrictedCashToBeUsedForRedemptionOfDebt" xlink:label="siri_RestrictedCashToBeUsedForRedemptionOfDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_RestrictedCashToBeUsedForRedemptionOfDebt" xlink:to="siri_RestrictedCashToBeUsedForRedemptionOfDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_RestrictedCashToBeUsedForRedemptionOfDebt_lbl" xml:lang="en-US">Restricted Cash To Be Used For The Redemption Of Debt</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="siri_RestrictedCashToBeUsedForRedemptionOfDebt_lbl" xml:lang="en-US">Restricted cash to be used for the redemption of debt</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="siri_RestrictedCashToBeUsedForRedemptionOfDebt_lbl" xml:lang="en-US">Restricted cash used for the redemption of debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="siri_RestrictedCashToBeUsedForRedemptionOfDebt_lbl" xml:lang="en-US">Restricted cash to be used for the redemption of debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="siri_RestrictedCashToBeUsedForRedemptionOfDebt_lbl" xml:lang="en-US">Restricted cash to be used for the redemption of debt.</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.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>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrants_lbl" xml:lang="en-US">Common stock issuance upon exercise of warrants</label>
    <loc xlink:type="locator" xlink:href="siri-20110331.xsd#siri_CommonStockIssuanceUponExerciseOfWarrantsShares" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrantsShares" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="siri_CommonStockIssuanceUponExerciseOfWarrantsShares" xlink:to="siri_CommonStockIssuanceUponExerciseOfWarrantsShares_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="siri_CommonStockIssuanceUponExerciseOfWarrantsShares_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_CommonStockIssuanceUponExerciseOfWarrantsShares_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_CommonStockIssuanceUponExerciseOfWarrantsShares_lbl" xml:lang="en-US">Common stock issuance upon exercise of warrants, Shares</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.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>
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