I am trying to upgrade to a Sportster 5 going through Circuit City. My sportster 4 antenna reception only comes in if the radio is propped forward in the docking station. This is true for the car dock and 2 home docks (one is brand new) so it seems it is a connection problem in the radio. I am going through Circuit City because I have time left on the service contract I paid for and will be able to exchange a new radio for the broken one. The salesperson there said there are no radios in stock because of the merger and they are waiting for new radios that will be Sirius/XM ready. He said XM have these radios out already but not Sirius. Does this sound right? If so any idea when the radios will be out there? My sportster 4 is not getting better.