Investor Relations

SIRIUS Satellite Radio To Participate In Banc Of America Investment Conference

NEW YORK – September 20, 2004 – SIRIUS (NASDAQ: SIRI), the premium satellite radio provider known for delivering the very best in commercial-free music and sports programming to cars and homes across the country, today announced that David J. Frear, Executive Vice President and Chief Financial Officer, and Andrew Gregor, Vice President, Business Development and Treasurer, are scheduled to present at the Banc of America Investment Conference in San Francisco, CA on Wednesday, September 22, 2004.

A live audio webcast of the event will be available via the Investor Relations section of the Company's website sirius.com on Wednesday, September 22, 2004 at 4 pm PDT. A replay will be available beginning approximately two 2 hours after the live webcast.

About SIRIUS
SIRIUS, now available to over 10 million DISH Network satellite TV and SIRIUS Satellite Radio subscribers, provides listeners with over 120 channels of the best commercial-free music, sports, information and entertainment, with digital quality sound coast-to-coast, broadcast daily from New York City, Los Angeles, Nashville, New Orleans, Houston and Daytona. SIRIUS offers 65 channels of 100% commercial-free music, featuring multiple categories of pop, rock, country, hip-hop, R&B, dance, jazz, classical and Latin music, along with more than 55 channels of world-class sports, news, talk entertainment, traffic and weather for a monthly subscription fee of only $12.95, with greater savings and convenience for upfront payments of multiple months or a year or more. Subscribers can listen online for free to SIRIUS' 65 channels of 100% commercial-free music. SIRIUS also broadcasts live play-by-play games of the NHL and the NFL, and is the Official Satellite Radio partner of the NFL.

SIRIUS Satellite Radio products for the car, truck, home, RV and boat are manufactured by Alpine, Audiovox, Blaupunkt, Clarion, Eclipse, Jensen, JVC, Kenwood, Panasonic, Sanyo and U.S. Electronics, and can be purchased at major retailers including Advance Auto Parts, Best Buy, Car Toys, Circuit City, Crutchfield, Good Guys, Wal-Mart, Sears, Tweeter and Ultimate Electronics, along with RadioShack and DISH Network outlets.

SIRIUS' exclusive automotive partners DaimlerChrysler, Ford and BMW represent over 40% of new cars and light trucks sold annually in the United States. Automotive brands currently offering SIRIUS radios in select new car models include BMW, MINI, Chrysler, Dodge, Jeep, Nissan, Infiniti, Mazda, Audi, Ford, Lincoln-Mercury, Mercedes-Benz, Porsche and Volkswagen. Automotive brands that have announced plans to offer SIRIUS radios in select models include Jaguar, Volvo, Land Rover and Aston Martin. In 2004, SIRIUS radios are expected to be available in over 80 different car models, with more than 50 of them factory programs. Also, Hertz currently offers SIRIUS in 29 vehicle models at 53 major locations around the country. In addition, the Penske companies – Penske Auto Group and United Auto Group– are offering SIRIUS radios as a factory installed option, where available, in their cars and trucks through their dealerships.

Genmar Holdings, the world's largest manufacturer of recreational boats, Formula Boats and Winnebago, the leading supplier of recreational vehicles and motor homes, also offer SIRIUS.

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, 2003 filed with the Securities and Exchange Commission. Among the key factors that have a direct bearing on our results of operations are: our dependence upon third parties to manufacture, distribute, market and sell SIRIUS radios and components for those radios; the unproven market for our service; our competitive position and any events which affect the useful life of our satellites.