As I was on my way to work this morning I changed radio stations. When I did the volume stopped. The radio is on. The volume control shows adjustment if you move it but still no volume. I again changed to various stations and to satellite radio and to the CD player all with the same results, no volume. I turned the radio off and back on with no luck. When I got to work I turned the car off and restarted it. Still with no volume. Help!