my buddies got xm...pretty good....don't liek the units they come in....but pretty good.....my brothers got sirius and it's sweet....better head units....like the channel set up over xm....can't really say either has better music selection because they both have everything...well that most people listen to but ya...i'm thinking of getting sirius...

Sirius kicks ass. i got it 21 months ago and will never listen to toronto raido again. but u gotta get the US version of Sirius beucase it has more channels and is jsut better

In the world of XM vs Sirius, it’s a tough call and depends on your budget and listening preferences. Even though Sirius is a few extra bucks a month they have nationwide NPR and better sports coverage. XM seems to have better audio quality, and a larger selection of music channels. Sirius has less music channels, but more "commercial free" music channels and more talk channels.

i like sirius way better... and howard stern is great

if you go to the future shop web site, you can compare the 2 and see all the station eachother has

how much is it for the unit? approx