XM Satellite Radio Augments Marketing Team

Establishment of Dedicated Automotive Marketing Group to Support Planned Growth in Automotive Channels

My-Chau Nguyen Joins XM as Senior Vice President, Marketing, Planning and Research
Sean Connolly Named Vice President, Brand Management and Media

Washington D.C., July 13, 2006 -- XM Satellite Radio, the nation’s leading satellite radio service with more than 6.8 million subscribers, has realigned and strengthened its marketing operations with the creation of a dedicated marketing group for its growing automotive footprint, as well as with a number of senior-level marketing appointments, it was announced today by Hugh Panero, the company’s President and CEO.

Under the new structure, XM veteran Steve Cook has been named to the newly created role of Executive Vice President, Automotive, effective immediately. In his new role, Cook will focus exclusively on XM’s automotive strategic partnerships, which include General Motors, Honda, Toyota, Hyundai and Nissan, and which together account for approximately 60 percent of the U.S. automotive market. For XM, 2006 is a staging year for significant volume growth in 2007 and 2008 with annual factory-installations of XM radios expected to double in the next two years.

In addition, My-Chau Nguyen, formerly of Sprint Nextel Communications, will join XM as Senior Vice President, Marketing, Planning and Research, and Sean Connolly, formerly of Intel Corporation, will be named Vice President, Brand Management and Media. Both will report to a Chief Marketing Officer, who will be appointed in the coming months to oversee all sales and marketing for the company, including media, branding and retention programs. Until a Chief Marketing Officer is named, Nguyen and Connolly will report to Panero.

“With today’s appointments, XM is taking important steps to strengthen our marketing department to support the growing size and scope of the automobile and retail sectors,” said Panero.

As Senior Vice President, Marketing, Planning and Research, My-Chau Nguyen will oversee XM’s strategic marketing efforts with responsibility for packaging, pricing, retention and marketing research. Her appointment is effective in September. Nguyen most recently held several senior marketing positions at Sprint Nextel Communications, serving both as Vice President, Marketing Excellence and as Vice President, Segment/Industry/National Accounts Marketing. She also served in senior marketing positions for AOL and Cable & Wireless.

In his new role as Vice President, Brand Management and Media, Sean Connolly will oversee brand marketing and media for XM, effective August. He most recently served as Worldwide Advertising Director at Intel Corporation, where he oversaw Intel’s global advertising campaigns, including television, print, radio, outdoor and online, for both business and consumer audiences. He joined Intel in 1999 as Consumer Advertising Manager and Director. Prior to that, Connolly spent six years with Foote, Cone & Belding Worldwide working with a client roster that included 3Com, Palm Inc., AT&T, Citibank and Nabisco Inc., among others.

About XM Satellite Radio
XM (NASDAQ: XMSR) is America’s number one satellite radio service with more than 6.8 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City, the Country Music Hall of Fame in Nashville, Toronto and Montreal, XM’s 2006 lineup includes more than 170 digital channels of choice from coast to coast: the most commercial-free music channels, sports, talk, comedy, children’s and entertainment programming; and the most advanced traffic and weather information.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, Honda, Toyota, Hyundai, Nissan, and Porsche, is available in more than 140 different vehicle models for 2006. XM’s industry-leading products are available at consumer electronics retailers nationwide. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this press release include demand for XM Satellite Radio’s service, the Company’s dependence on technology and third party vendors, its potential need for additional financing, as well as other risks described in XM Satellite Radio Holdings Inc.’s Form 10-K filed with the Securities and Exchange Commission on 3-3-06. Copies of the filing are available upon request from XM Radio’s Investor Relations Department.

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