I've got a buddy who just bought a 92 County that will only play music through the 2 headliner speakers. I believe it has the ads system, everything is stock. It did play through all speakers for about 10 seconds, then he touched the head unit and it went back to just 2. He's checked all fuses and wiring into the headunit to ensure everything is connected tight. Anyone experience a similar problem? Any help is greatly appreciated.