Investor Relations

SIRIUS Satellite Radio Calls Notes

Company to Redeem All of its 15% Senior Secured Discount Notes due 2007 and 14-1/2% Senior Secured Notes due 2009

NEW YORK, Aug 08, 2005 /PRNewswire-FirstCall via COMTEX/ -- SIRIUS Satellite Radio (Nasdaq: SIRI) today announced that it has called for redemption all of its outstanding 15% Senior Secured Discount Notes due 2007 and 14-1/2% Senior Secured Notes due 2009. The notes will be redeemed on September 8, 2005. The 15% Notes will be redeemed at a price of 107.5% of the principal amount outstanding plus interest to the redemption date. The 14-1/2% Notes will be redeemed at a price of 104.833% of the principal amount outstanding plus interest to the redemption date.

(Logo: http://www.newscom.com/cgi-bin/prnh/19991118/NYTH125 )

Notice of the redemption is expected to be mailed to holder of the notes by The Bank of New York, the trustee for the notes. This redemption is in accordance with the terms of the indentures under which the notes were issued.

About SIRIUS

SIRIUS delivers more than 120 channels of the best commercial-free music, compelling talk shows, news and information, and the most exciting sports programming to listeners across the country in digital quality sound. SIRIUS offers 65 channels of 100% commercial-free music, and features over 55 channels of sports, news, talk, entertainment, traffic and weather for a monthly subscription fee of only $12.95. SIRIUS also broadcasts live play-by- play games of the NFL and NBA, and is the Official Satellite Radio partner of the NFL.

SIRIUS radios for the car, truck, home, RV and boat are manufactured by Alpine, Audiovox, Blaupunkt, Clarion, Delphi, Jensen, JVC, Kenwood, Pioneer, Sanyo and XACT Communications. Available in more than 25,000 retail locations, SIRIUS radios can be purchased at major retailers including Best Buy, Circuit City, Crutchfield, Costco, Office Depot, Sears, Target, Wal-Mart and RadioShack. SIRIUS is also available at heavy truck dealers and truck stops nationwide.

SIRIUS radios are currently offered in vehicles from Audi, BMW, Chrysler, Dodge, Ford, Infiniti, Jaguar, Jeep(R), Land Rover, Lexus, Lincoln-Mercury, Mazda, Mercedes-Benz, MINI, Nissan, Scion, Toyota, Porsche, Volkswagen and Volvo. Hertz currently offers SIRIUS at major locations around the country.

Click on www.sirius.com to listen to SIRIUS live, or to find a SIRIUS retailer or car dealer in your area.

Any statements that express, or involve discussions as to, expectations, beliefs, plans, objectives, assumptions, future events or performance with respect to SIRIUS Satellite Radio Inc. are not historical facts and may be forward-looking and, accordingly, such statements involve estimates, assumptions and uncertainties which could cause actual results to differ materially from those expressed in any forward-looking statements. Accordingly, any such statements are qualified in their entirety by reference to the factors discussed in our Annual Report on Form 10-K for the year ended December 31, 2004 filed with the Securities and Exchange Commission. Among the key factors that have a direct bearing on our operational results are: our dependence upon third parties, including manufacturers of SIRIUS radios, retailers, automakers and programming partners, our competitive position and any events which affect the useful life of our satellites.

G-SIRI

     Contacts for SIRIUS:
     Jim Collins
     Media
     212-901-6422
     jcollins@siriusradio.com

     Michelle McKinnon
     Analysts
     212-584-5285
     mmckinnon@siriusradio.com

     Jaymie VanValkenburgh
     Investors
     212-584-5158
     jvanvalkenburgh@siriusradio.com

SOURCE SIRIUS Satellite Radio

Jim Collins, Media, +1-212-901-6422, jcollins@siriusradio.com, Michelle McKinnon,
Analysts, +1-212-584-5285, mmckinnon@siriusradio.com, or Jaymie VanValkenburgh,
Investors, +1-212-584-5158, jvanvalkenburgh@siriusradio.com, all for SIRIUS Satellite
Radio
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