I chose Sirius. I had XM in another vehicle, and the music was a little too eclectic, all the time, for me. Plus, stupid jingles, dj's who would talk too much, and the FM retransmittals turned me off. Both companies have their hands full as far as financial concerns. But there again, that could be said for a lot of people!! See my thread a little further down the page "Got the Sirius FM Mod...."