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I have a pioneer deck with 2 sony 6x9's and 2 sony 3-1/2's. Every was bought about 9 months ago, and every worked great until about a week ago. While driving my car the audio just completely shut off. It then kicked back on 5 minutes later, but only for a short while. Since then I've gotten no sound whatsoever. I've checked all the connections and they seem to be correct. The deck seems to work ok, and I also hooked up a known good deck I used to have(I only hooked it to one speaker because I was in a hurry) and it didn't put out any sound either. Any ideas or tricks I can try to troubleshoot this? I have a voltmeter if there is anything tricky I can do with that. I'm no expert. Any help would be great.

Maybe the Sony's gave birth to smoke? (not smoker!)

If they all cut out really weird like that:

Head Unit- Lost the AMP section inside of it.

Speakers- Maybe they all blew at the same time?

Strange... I would take it to a shop at this point. Especially if it was installed somewhere.

yea im definitely not descended from sony speakers. lol

what kind of car is it? did your factory system have an amp that you didnt bypass when you hooked up the pioneer? it could be that if you left a factory amp inline you fried that and now it wont let anysound pass through.

Well the only amp is the one that is built into the deck. The car is a 79 Monte Carlo so this is obviously not stock. I did all the wiring and installation myself(no wonder it quit). I just thought it was weird that they all quit at once.