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GTRSR

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Everything posted by GTRSR

  1. Thanks Richard. 1999 C2 996 with almost entirely aftermarket audio except for stock PCM1 head unit. Other thoughts / suggestions of appropriate ground points to eliminate whine that sounds like it is coming from the gauge cluster & speakers? Thanks.
  2. Hi I'm trying to trace down the root cause of alternator whine / rpm dependent noise in our 996 with PCM (1), and aftermarket amp & crossovers. I've already improved the grounding on the amp (some improvement in whine) and next on my list is the head unit. Can anyone provide the "correct" grounding of the PCM head unit? Other suggestions would also be appreciated. Thanks! PS - newbie member, sorry if this has already been discussed, my search didn't turn up anything addressing this specific problem.
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