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another ground loop issue thread
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<blockquote data-quote="Divvy" data-source="post: 8777751" data-attributes="member: 682353"><p>Hello! Last week i bought some new speakers for the rear. The install went well but when i connected the rca in the amp, the speakers started making a ground loop noise. </p><p>There is a whining noise that follows the rpm and a static distortion.</p><p>Now i know there is a sticky theread on this, and ive tried every suggestion in it, but the sound is still present.</p><p></p><p>I've currently tried: temporary grounding the engine, alternator and battery with jumper cables, new ground for H.U, new H.U, changing amp ground location (yes, its bare metal), changing car battery, starting the Hu off a separate battery, new rca's (separate from the power wire), grounding rca output to H.U, moving the rca's and removed the stock amp in the car. all to no avail, the noise didnt even change.</p><p>The distortion only comes on when all four rca's are plugged in, but emits from all four speakers. Without the ignition on, it plays silk smooth. The sub is currently uninstalled, but there was no noise when it was hooked up to a separate amp with same grounding location.</p><p></p><p>The car is an audi a4 b7 avant</p><p>Amp is dls ca-p44</p><p>And ive tried 2x sony and one pioneer headunits</p><p>Any suggestions would be greatly appreciated, before i ram the car in a wall and buy a new one <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Divvy, post: 8777751, member: 682353"] Hello! Last week i bought some new speakers for the rear. The install went well but when i connected the rca in the amp, the speakers started making a ground loop noise. There is a whining noise that follows the rpm and a static distortion. Now i know there is a sticky theread on this, and ive tried every suggestion in it, but the sound is still present. I've currently tried: temporary grounding the engine, alternator and battery with jumper cables, new ground for H.U, new H.U, changing amp ground location (yes, its bare metal), changing car battery, starting the Hu off a separate battery, new rca's (separate from the power wire), grounding rca output to H.U, moving the rca's and removed the stock amp in the car. all to no avail, the noise didnt even change. The distortion only comes on when all four rca's are plugged in, but emits from all four speakers. Without the ignition on, it plays silk smooth. The sub is currently uninstalled, but there was no noise when it was hooked up to a separate amp with same grounding location. The car is an audi a4 b7 avant Amp is dls ca-p44 And ive tried 2x sony and one pioneer headunits Any suggestions would be greatly appreciated, before i ram the car in a wall and buy a new one (: [/QUOTE]
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