We recently sold our car that had XM and I was paying close to $175 a year for it. When I called to cancel, they were jumping through hoops trying to get me to keep it. Offered me a receiver for the new car (lied and told them I didn't have a car!). Then they offered a receiver for the house (lied and told them that I didn't have a computer). They finally agreed to refund a pro-rated amount of $45 for the remaining six months of service!!! I said half of $175 is $87.50?!? They couldn't explain how their pro-rated scale worked. 90 days later and I'm still waiting on my check...
My wife's new company car comes with FREE XM as part of a promotional package through the lease company so I'll still be using it. Just not paying those thieves any of my money.