I just bought a new car w/ XM Radio & wanted to transfer my Sirius service. I am now on the line for the 3rd time because they keep disconnecting me. My 2nd call was to the Phillipines and then transferred to a US rep. You can't transfer service from Sirius to XM. It appears you can't cancel service on-line (& least not if you seek a refund for unused time) & they don't even want to take the order over the phone. read full review »