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Message: <blockquote data-quote="Tpusich" data-source="post: 8253740" data-attributes="member: 660732"><p>I know this has been covered a thousand times, and believe me I've been reading forums for hours. I'm still experiencing alternator whine. I have a 400w Rockford phosgate amp for my 4 door speakers with an alpine HU. I have COMPLETELY sanded my ground and made sure it is very clean. I have ground loop isolators on both RCA sets going to the amp and they are run on the opposite side of the car from my power cables. If both sets of RCAs are disconnected from the amp there is no whine, but as soon as the cables or even my fingers touch the RCA input ports on the amp I hear the whine. Is something wrong with my amp???? I know this is probably answered somewhere but I can't seem to find it, thanks in advance for any suggestions!</p></blockquote><p></p>

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