Ok, I just went to the Sirius web site where you can sign up for a free trial to listen to what they have. I've been listening for 20 minutes on "hard attack" the metal channel, and the dj yammers on and on and on and on and on and on between every song!!! The whole point of commercial free music is that the music is CONTINUOUS. It defeats the purpose to have to listen to the dj blaber for 15 mintues every hour.
On a side note, I went to the XM website also and saw the BMW adaptor kits. $299 plus intallation ($50 for tuner and antenna, $250 for adaptor). However, the aftermarket sony adaptors are $200 cheaper it looks like ($50 for tuner and antenna $50 for Sony adaptor). What's the deal?