Question about Pioneer DEH-P7800MP
Try to be more specific, but I will say that if one of your speakers is grounded out and/or blown, it will shut off the internal audio of that deck for all 4 speakers. Try disconnecting speakers one by one and turning the car on and off until you figure out which one it is. Also, what year/make/model car is it? Does it have bose? you may need to power up an additional wire to get it to play. Let me know, be as specific as possible.
Posted on Aug 20, 2007
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Posted on Jan 02, 2017
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