Well I'm driving yesterday and my XM Radio stops working. I can't get a signal on any channel, not even the preview channel (channel 1). All other radio functions work properly. I tried the XM radio signal refresh thing but that didn't do anything, so I'm guessing my antenna is either broken or came unplugged somewhere. But where? I've had the radio out before so I know the plugs on the back are keyed into the radio with a push button, I can't imagine how that could come loose seeing how it was pretty difficult to get them out even when I wanted to. Is there another junction somewhere in the car or up at the antenna itself that could have come loose?