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Message: <blockquote data-quote="DNick454" data-source="post: 6086539" data-attributes="member: 600755">It's more than likely not the RCA's. As long as they are on different sides of the car as the power leads, even the shittiest of RCA cables won't provide any severe noise so long as they aren't touching something else.Unless your headunit has something messed up with it, I would almost without a doubt guarantee it's a ground loop issue. If you've got multiple amps, wires, and grounding locations for them, then that would cause it. Try making sure your alternator, battery, and engine have a good ground, and then make sure if you have multiple amps, that they are all grounded to a central location instead of different random spots, which can cause a ground loop problem.</blockquote>

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