GM's come equipped with XM radio's.Crysler has a exclusive contract with sirius but it runs out soon.Ford has sirius also.I was listening to Howard Stern a while ago,and they was saying that all they would have to do is replace a chip to switch over from XM to Sirius.In fact they could do that for you at your GM dealership.Sirius has the nfl channel which makes it nice for me when I am over the road to keep up with my Steelers.Plus all the other channels you have to choose from.
