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<blockquote data-quote="TacomaBC" data-source="post: 8922567" data-attributes="member: 694591">Been trying to track down this very frustrating alternator whining for a couple months now, can&#039;t seem to locate the issue. It&#039;s very inconsistent, i can go for a few days without any noise, then suddenly its back. Turning the truck off and on again can often fix it, but then it reappears a couple hours later. What I&#039;ve tried.- Unplugging the RCA&#039;s don&#039;t change the amount of feedback. They aren&#039;t run close to any power, and i got some cables off amazon that some people gave mild praise about for not being cheap and working well.- I&#039;ve ran a second bond to the head unit just in-case directly to the battery. While the issue is happening, i can connect and disconnect this second ground and it doesn&#039;t change the amount of feedback.- As it&#039;s inconsistent, i don&#039;t believe it&#039;s the amp settings. As for the amp itself, it got great reviews so I&#039;m hoping that it isn&#039;t this.- Battery voltage tests fine under no load/load. - Both the positive and the negative from the amp are ran directly to the battery. For the negative, I&#039;ve tried attaching it to both the stud (factory frame bond?) and the battery itself and it doesn&#039;t change anything.Any ideas? Photo of my truck for attention.Polk Audio DB 6502 FrontsPolk Audio DB 652 RearsPioneer GM-DX975 AmpILX-W650 Head UnitSubwoofer stole out of brothers garage (12&#039;)</blockquote>

[QUOTE="TacomaBC, post: 8922567, member: 694591"] Been trying to track down this very frustrating alternator whining for a couple months now, can't seem to locate the issue. It's very inconsistent, i can go for a few days without any noise, then suddenly its back. Turning the truck off and on again can often fix it, but then it reappears a couple hours later. What I've tried. - Unplugging the RCA's don't change the amount of feedback. They aren't run close to any power, and i got some cables off amazon that some people gave mild praise about for not being cheap and working well. - I've ran a second bond to the head unit just in-case directly to the battery. While the issue is happening, i can connect and disconnect this second ground and it doesn't change the amount of feedback. - As it's inconsistent, i don't believe it's the amp settings. As for the amp itself, it got great reviews so I'm hoping that it isn't this. - Battery voltage tests fine under no load/load. - Both the positive and the negative from the amp are ran directly to the battery. For the negative, I've tried attaching it to both the stud (factory frame bond?) and the battery itself and it doesn't change anything. Any ideas? Photo of my truck for attention. Polk Audio DB 6502 Fronts Polk Audio DB 652 Rears Pioneer GM-DX975 Amp ILX-W650 Head Unit Subwoofer stole out of brothers garage (12') [/QUOTE]

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