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Message: <blockquote data-quote="Ffej" data-source="post: 8546745" data-attributes="member: 671187"><p>Update: I know why I'm getting the amp thump at power up and power down. One of my two amps is staying powered on, even with the head unit off. This wasn't happening until all of the problems started. My turn on lead goes to both amps, but for some reason the Alpine (sub amp) is not turning off. Could a ground be the problem? They also share a ground through a distribution block. Just found out that the top RCA input to the amp powers it on/off when plugged in and unplugged.</p></blockquote><p></p>

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