Sorry I can not be of more help, but if someone here can not answer you question, as suggested give Iron Cross radio a call. I have worked with them a couple of times with my old bike and had the upgrade done on my last bike. They had always been very helpful and did a great job repairing my old radio.I can not even run the self diagnostic because none of the buttons on the head unit will do anything, it is stuck on an FM station, even displaying the song that is playing with no sound. tried pulling the fuses and nothing changed. could a stuck CD cause the head unit to lock up?