Head unit issues!!! No sound!! Help

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fj62max

Wildlife Customs
Joined
Oct 31, 2007
Threads
164
Messages
773
I installed a new head unit. Worked perfect for a month then all of sudden i get no sound at all. I returned the head unit and installed the new one and the same thing. I bypassed the factory amp. When i remove the rear speaker harness only the front speakers work.
 
Could a wire be chaffed and rubbing somewhere? I had a similar issue, turned out to be a loose dash speaker wire grounding out.
 
Again! Second time it happens. I replaced the head unit thinking it was that. When i installed the new head unit i had the same issues. So i unplug the speaker harness behind the unit and plugged it back and started working again. So i put everything back and after 3 weeks it happen again. Heading works but get no sound. The factory amp is bypassed and and all harness to the factory amp is disconnected. Iam i suppose to make the speaker harness extend to the harness by the amp?
 
Maybe bad contacts in the door wiring? Mine does this some times so I am going to run new door speaker wiring directly to the HU.
 
check all the speaker connections you can. my kenwood last week malfunctioned when i was playing music pretty loud. cycled power and it came up with an error on the HU. i had zero sound. i reseated a few of the speakers connectors on the back of the speakers and that did the trick.
 
I finally found the problem and didnt have to take out the dash. Thank god! One of my rear speakers was grounding out on the door.
 
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