XM and Sirius release satellite radio subscription figures

During the second quarter of this year, Sirius gained 600,460 new subscribers, while industry leader XM garnered 398,000. Not bad for Sirius, which still trails XM in overall subscribers with 4.67 million to XM's 6.89 million. Will Sirius, with the likes of Howard Stern, pull even soon?

Details:

Sirius press release,

XM Satellite press release