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Acura TL Alternator Whine - HELP!
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<blockquote data-quote="_Frosty_" data-source="post: 8282809" data-attributes="member: 661807"><p>I have tried bypassing the HU and plugging my iPhone into the amps via the same RCAs - the noise is gone when I do that. So that led me to believe that it was a HU issue. However, I bought another OEM HU and I had the same noise (worse actually). It seems unlikely that both OEM HUs are defective.</p><p></p><p>To be honest, it doesn't sound safe to remove the alternator positive wire while the car is running. Don't I chance ruining other electrical components by doing that? I think I'll just have the alt. checked at a parts store (not sure how reliable those tests are though).</p><p></p><p></p><p>It's my understanding that a LOC is generally used to bring down the voltage of speaker-level signal and turn them into line-level RCAs. The LAST thing I need to do is bring down the voltage of my factory HU output. It only puts out 1 volt at max volume. I originally had a line driver installed up front to boost the low signal before sending it to the amps. The alternator whine was still present, so I just removed it.</p><p></p><p></p><p>I want to keep the OEM HU. I know it can be done.</p><p></p><p>Thanks for the advice so far guys. I know there has to be a solution!</p></blockquote><p></p>
[QUOTE="_Frosty_, post: 8282809, member: 661807"] I have tried bypassing the HU and plugging my iPhone into the amps via the same RCAs - the noise is gone when I do that. So that led me to believe that it was a HU issue. However, I bought another OEM HU and I had the same noise (worse actually). It seems unlikely that both OEM HUs are defective. To be honest, it doesn't sound safe to remove the alternator positive wire while the car is running. Don't I chance ruining other electrical components by doing that? I think I'll just have the alt. checked at a parts store (not sure how reliable those tests are though). It's my understanding that a LOC is generally used to bring down the voltage of speaker-level signal and turn them into line-level RCAs. The LAST thing I need to do is bring down the voltage of my factory HU output. It only puts out 1 volt at max volume. I originally had a line driver installed up front to boost the low signal before sending it to the amps. The alternator whine was still present, so I just removed it. I want to keep the OEM HU. I know it can be done. Thanks for the advice so far guys. I know there has to be a solution! [/QUOTE]
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Acura TL Alternator Whine - HELP!
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