I have a 2006 Accent and suddenly no sound from the radio. Radio turns on, display shows, you can even change the station or start CD player. Just hear a snap in the speakers initially after turning on radio but no sound after that. checked all fuses, i think. At least all I could find. One time they did come back and start playing for about fifteen minutes and then went out again, that makes me think it's not a fuse at all. Any ideas? Is there a separate power unit for the speakers maybe?. Thuought it was the stereo unit itself so bought a new unit to replace the stock unit and same thing, no sound except for that initial snap.