Yep, we are hooked on it too. I have Sirius in my car after winning a receiver unit in January and the new vehicle came with XM. Dunno what the merger is going to mean, but I'll keep it in both vehicles.
I agree with you FA, the noise floor in my vehicles sorta makes the mp3 issue moot anyway, and most
FM stations didn't sound as good, especially with morning jockeys jabbering through the first 30 seconds of a song.