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Alternator Whine... Help Please
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<blockquote data-quote="CleanPrix" data-source="post: 7264731" data-attributes="member: 628405"><p>First you need to figure out what is causing it. Cheap troubleshooting. Get anything that has audio out on it via RCA. Something that can bypass the head-unit. An ipod with an rca adapter works well but have it turned down. Plug it straight to the amp and see if it makes the same noise. If the whining stops, then it eliminates your amp/sub as a culprit. If it is still heard then it is from your amp to your subs. 9/10 times its your head-unit. Do you have the head-unit power going straight to the battery or is it running from your harness? If you troubleshoot and you find it IS the head-unit, run a positive and negative to the battery as a means of troubleshooting. Don't hide the wires, just make sure you are not going to short anything out. Hook it up to your head-unit. If you have the battery and ground running to it and you still have the whining, troubleshoot it completely out of the car. I used an 110ac to 14VDC converter, but a battery works fine too. If it makes the sound out of your car then the head-unit has the defect and there is little you personally can do to fix. Hope this helps. If you need me to go into a little more detail or explain it further, PM me.</p></blockquote><p></p>
[QUOTE="CleanPrix, post: 7264731, member: 628405"] First you need to figure out what is causing it. Cheap troubleshooting. Get anything that has audio out on it via RCA. Something that can bypass the head-unit. An ipod with an rca adapter works well but have it turned down. Plug it straight to the amp and see if it makes the same noise. If the whining stops, then it eliminates your amp/sub as a culprit. If it is still heard then it is from your amp to your subs. 9/10 times its your head-unit. Do you have the head-unit power going straight to the battery or is it running from your harness? If you troubleshoot and you find it IS the head-unit, run a positive and negative to the battery as a means of troubleshooting. Don't hide the wires, just make sure you are not going to short anything out. Hook it up to your head-unit. If you have the battery and ground running to it and you still have the whining, troubleshoot it completely out of the car. I used an 110ac to 14VDC converter, but a battery works fine too. If it makes the sound out of your car then the head-unit has the defect and there is little you personally can do to fix. Hope this helps. If you need me to go into a little more detail or explain it further, PM me. [/QUOTE]
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Alternator Whine... Help Please
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