I just picked up XM this week, but I am going with the US feed so no AP miles for me. They have several stations not available in the Canadian market. If/when they offer them, I will switch over.

As for Stern, I have been told the Opie and Anthony show is freakin hilarious as is better than anything Stern has ever done. Once I am back from the next trip, I will sign up and test it out.