I just bought 6 months old Challenger. When new, it came with 1 year SiriusXM radio and 5 year traffic subscription. Based on dates, I should have another 6 months of radio service. Unfortunately, I was just told by SiriusXM that previous owner cancelled the subscription so my radio no longer works. I did not get any papers with terms and conditions so I do not even know if the subscription is transferable, tied to VIN or previous owner. I was assuming that it should be tied to the car but apparently this is not the case. Do you guys know what's the deal with SiriusXM radio in preowned cars?