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I’m getting bad alternator engine whine thru my mids/highs. I have narrowed down the problem to my eq. I ran a separate ground from the back of my HU , bypassing the factory harness. The only way the noise goes away is if I unplug all RCA’s from the back of the eq and disconnect its power/ground/remote, and just run straight from the HU to the amps. If you plug in the power to the eq’s the noise will return even if there are no RCA’s connected. IF you unplug power to the eq and leave any RCA’s plugged in the noise will appear. Any suggestions? I have dual eq’s…the chances of two eq’s being bad are slim. They are the clarion 7 band eq/line drivers. I have tried running new ground power straight to my battery and the noise was still there. B/c its alt. whine I have to think there is still a ground loop somewhere. I tested the voltage at every device and I am with in .01 volts of each piece of equipment.
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