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Message: <blockquote data-quote="Einzee" data-source="post: 4729901" data-attributes="member: 556176">If both amps have separate grounds (isolated from each other) it seems very odd that fiddling with one ground would make the other amp shut down unless the ground wires are attached to each other (zip ties).  I strongly recommend that you secure the wire terminal to the body of the vehicle with a nut and a bolt.  Scrape the paint off of the point of attachment.As far as the size of your wires... there is absolutely no reason to exceed the capacity of the lugs on the amp. Having to shave the wire down to make it fit into the lugs actually lowered the ampacity of the wire. Bottom line.... its a waste of money to use large wires only to shave them down and in turn reducing the ampacity of the conductor.</blockquote>

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