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buzzing noise in my speakers when engine is running

Old 12-17-2009, 02:07 PM
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buzzing noise in my speakers when engine is running

hi! since i've installed my new amp, I hear a buzzing noise in my speakers. When i push the throttle, the noise is faster. My ground is ok and my battery is ok. Do you yave any ideas of what is my trouble?
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Old 12-17-2009, 02:22 PM
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I had this type of problem when the signal wires were ran with the amp's power wire. At a certain RPM the engine would wine quite loud.

Are the RCA's routed on the same side as the power?
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Old 12-17-2009, 03:04 PM
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snif snif... I smell a ground loop.... any chance you have a pioneer headunit or a massive bee infestation?
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Old 12-17-2009, 03:05 PM
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no my power wire is on the left side with remote and left speaker wires and my rca wires are on the right side of my car with the right speaker wires.

I also noticed when i unplug a pair of rca input (front or rear), i dont hear the noise anymore.
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Old 12-17-2009, 03:06 PM
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yes I have I pioneer touchscreem p3100. My amp ground is good but IDK about the head unit ground. You think this could be an issue? I only hear the buzz when my engine is running.
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Old 12-17-2009, 03:10 PM
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You have blown a fuse in the headunit that protects the preamp circuit. It is on the ground trace. It is not user fixable. Take the unit back and have it fixed or try the standard quick fix. Take the unit out of the dash. Attach a ground wire to the cd player chassis, take the other end of it and bare it. Wrap the bare end around the shield of the rca cable where it attaches to the cd player. This may solve the problem for you.
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Old 12-17-2009, 03:19 PM
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What rca are you talking about? Sorry I'm quite noob in car audio...
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Old 12-17-2009, 03:40 PM
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whaaaaaaat?
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Old 12-17-2009, 03:48 PM
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Originally Posted by Darin
whaaaaaaat?
Who are you talking to LOL?
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Old 12-17-2009, 03:50 PM
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You have 2 pairs of rca cables running from the head unit to the amp. Behind the deck is where they plug in. That is where you need to try the ground wire I talked about.
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