Sorry, I suppose this has been beaten to death, I have just not seen it. My XM, while hooked to the Aux. input cable has a alternator whine. I made it better by using a couple of toroids, but it is still there enough to make that mode unusable. What has anyone else done to eliminate the whine? By the way, the newer XM Roady XT's have greatly diminished rf output when using the FM transmitter feature. XM has included a gizmo that is supposed to directly tap the radio antenna to get enough of a signal into the bike's FM radio. XM told me that the FCC made them reduce the output of these newer units so that other radios tuned to what ever FM freq. is being used will not be bothered. Do you suppose that this is a way to make XM more "politically correct" and keep those awful talk radio people :twisted: off the more gentle :shock: folks' radios?