I never even considered XM radio until it appeared in my GP. I immediately appreciated the commercial free content, and the ability to switch over to a station that provides the musical genre to fit whatever mood I'm in. The programming could be a little better on the Jazz channels, but hey, it's pretty good. Another thing to consider is you don't have to search for radio stations when you go out of state. I like having CNN and ESPN News channels too. I'll probably subscribe.

As a side note, switching stations on the steering wheel and being able to see it on the heads up display is top shelf sweet.

Does anyone know the type of digital feed the XM radio provides?? Is it MP3 or some other compressed format, or are they actually sending PCM over satellite??