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New amp, static noise subwoofeers?
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<blockquote data-quote="Jonas84" data-source="post: 8820456" data-attributes="member: 687280"><p>Il sure, used ground to the round outer shield on rca, positive to the pointy part. Checked them multiple times. </p><p></p><p>Check the output? That would be the one to the speakers. That gives good signal. </p><p>As for maybe damaged the amp i dont think so since if i plug the signal to a external source and letting car power it.. Works great.</p><p></p><p>If I turn it around and let the car give signal and power from external source, aswell good. </p><p></p><p>Since i dont get a ohm reading from ground cables on input signal i believe as many said. They dont share the same ground. </p><p></p><p>Wiring from amp. </p><p></p><p>Grounded to chassi with 0.2ohm loss</p><p>Connected to battery with fuse, 0.1ohm loss. </p><p></p><p>Signal is spliced from the oem harness to rca. The rca is really short. Perhaps 5-6"</p><p></p><p>The oem output is extended about max 10" with the same size cable and wired up to amp. </p><p></p><p>Remote is taken from 12v outlet since it shuts down earlier then oem. I tried oem rem, and for testning now run it straight from battery. </p><p></p><p>I bought a ground loop isolator and will try it out later today. </p><p></p><p>Remember When cutting the negative on rca splice and connecting om rca it didnt have the interferance, connected the other rca that still had both positive and negative and straight away the subwoofer connected to that rca started humming. </p><p></p><p>Throwing in that i cant get a ohm reading from ground input signal anywhere in the trunk, battery or the ground you use for charging under hood would be a clear one that the oem head unit dont share the same ground. </p><p></p><p>Cant see any other problem.</p></blockquote><p></p>
[QUOTE="Jonas84, post: 8820456, member: 687280"] Il sure, used ground to the round outer shield on rca, positive to the pointy part. Checked them multiple times. Check the output? That would be the one to the speakers. That gives good signal. As for maybe damaged the amp i dont think so since if i plug the signal to a external source and letting car power it.. Works great. If I turn it around and let the car give signal and power from external source, aswell good. Since i dont get a ohm reading from ground cables on input signal i believe as many said. They dont share the same ground. Wiring from amp. Grounded to chassi with 0.2ohm loss Connected to battery with fuse, 0.1ohm loss. Signal is spliced from the oem harness to rca. The rca is really short. Perhaps 5-6" The oem output is extended about max 10" with the same size cable and wired up to amp. Remote is taken from 12v outlet since it shuts down earlier then oem. I tried oem rem, and for testning now run it straight from battery. I bought a ground loop isolator and will try it out later today. Remember When cutting the negative on rca splice and connecting om rca it didnt have the interferance, connected the other rca that still had both positive and negative and straight away the subwoofer connected to that rca started humming. Throwing in that i cant get a ohm reading from ground input signal anywhere in the trunk, battery or the ground you use for charging under hood would be a clear one that the oem head unit dont share the same ground. Cant see any other problem. [/QUOTE]
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