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Message: <blockquote data-quote="Wellyboy" data-source="post: 8588098" data-attributes="member: 673434">The whining is caused only by the RCAs nothing else... Grounding your RCA to your headunit does not always fix the issue completely it only sometimes decreases its frequency.. The next thing you should try is getting an RCA ground loop. Depending on your setup you can either get a 2 or 4 channel RCA ground loop.. I'v ordered one it's still coming not 100% sure if it will fix the problem but it's cheap an worth giving a go. Another way I know of getting rid of that whine completely is using your fader (this only works if your only using 1 speaker output off your HU) this is the method I'm using right now untill that RCA ground loop arrives. Goodluck! Sent from my MHA-L09 using Tapatalk</blockquote>

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