I had the XM Commander installed in my Land Rover in 2009, worked great. Now it makes a crackle noise and the audio is gone. There is still a display, the antenna shows full bars and the auxillary I plug it into works as I use it for my iPod. The guy who installed it said there was something on the unit they discontinued and I would have to buy a new unit all together and have it reinstallled. I called XM and they have no idea what I'm (he) is talking about. The install place has no units to install apparently because XM is low in stock and replacing all their units. I heard Sirius was getting rid of their units but not XM. Does this guy know what he is talking about? And most importantly, how do I get my XM back???