I have a 2009 aveo Lt and I got a subscription for xm satellite with the car but there is no way to pull up xm band on the cars stereo. I called the dealer and they said the car doesn't have xm then but I thought all 09 and newer aveos were equipped with it. What do I have to do to use the subscription, just change stereos or is there some other way I can go about it other than the fm transmitter?,would like to take advantage of this service if I can make it work