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Message: <blockquote data-quote="Manitoba" data-source="post: 8373159" data-attributes="member: 665353"><p>I have put in a new pioneer 8700 deck, pioneer four way speakers and, a pioneer four channel amp. I have a constant hum that is unchanging at all volumes it just becomes unnoticeable.  It doesn't change if the car is idaling, revved up, or off. I have the rca's and power on opposite sides, and have twisted pair rca cords. I have tried several differnt ground points for the amp and tried changing the ground on the deck. I have seen posts saying add ground to the rca's, is this true? I tried it and it made it a little quieter, if someone says it works  100% I'll find better wire and try it again. Anyone's 2cents is apriciated.</p></blockquote><p></p>

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