new stereo gone wrong

Hey guys, My buddy just installed a new single din Pioneer DVD stereo (AVH-P6300BT) last week in his 2002 Honda Civic.   It was working fine until yesterday. I checked it out and didn't see an issue with his wiring and I am afraid he blew out his stereos AMP somehow.   When he turns his stereo on you'll hear a single dull pop from his speakers then nothing. It started acting up yesterday when his speakers suddenly stopped playing. He turned his car off and back on again and his speakers played music again but only for another minute before stopping again. Now there is nothing. The stereo turns on normally and he can watch movies but no audio. His speaker wires from his stereo have no voltage when his audio should be playing.   I don't believe Honda civics had stock Amps. Ideas? Things to test? Let me know. Anything would be greatly appreciated. Jon-BiG J-

He may have blown one or more speakers. This causes the decks amp to go into protect.  Disconnect the power plug from the back of the radio, plug it back in, start with the volume LOW and listen to each speaker for one that sounds bad.  If nothing else, disconnect all speakers and hook them up one at a time till a bad one shows up.

Thanks, I'll give that a try. He just put his old stereo back in and It goes into protect mode. -BiG J-

I would try this.  Use your ohm meter and check the resistance through each speaker from the speaker wires at the head unit.  I suspect one will be shorted.  Look for either blown speaker or damaged speaker wire somewhere in the run.Support the12volt.com