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  1. Very bad alternator whine (987 Cayman)

    General Car Audio Discussion
    Hi, I'm new on here and this is my first post. And I'm posting because I've put together an install in a 987 Cayman and can't get rid of a terrible alternator whine. How terrible? Terrible such as to make the system unusable - it's loud. This may be a long post with quite a lot of detail but I...
  2. Pioneer head unit noise/whine in 2001 WRX

    Equipment Repair and Modification
    Hi guys, not sure where this post belongs, figured I'd try here. So I have an 01 WRX, with a pioneer headunit installed by the previous owner, there is no amp at this stage. I believe the unit is an AVH-X2600BT, or something very similar from pictures I can track down. I began to notice the...
  3. Alternator whine, can't kill it...

    General Car Audio Discussion
    Alright, so I'm new to this forum, but I'm not exactly new to audio. Running three-way active off the 80prs, old school phase audio mids, vifa xt25 tweeters, IB jbl w15. The thing is, I have ridiculous alternator whine. I don't know how to track it down - 1. I had diode ripple in my...
  4. Engine/alt whine when headunit is off and car running

    General Car Audio Discussion
    Lots of research and I can't find any ideas-might just be obsessing. Installed a new Clarion 702 with PPI i520.4 (under front passenger seat.) Grounded headunit to eliminate minor static in speakers. Amp grounded to same location as OEM amp but I sanded down to bare metal-was painted.)...
  5. Ready to tackle some alternator whine?

    Technical & Advanced Car Audio Discussion
    Alright folks, I've been messing with car audio for a while now, but my alternator whine has me stumped. The situation is as follows: The car is 1996 Honda Accord 2.2L I have two Boston Accoustic GT series amps feeding front comps and rear coaxes. I also have one Alpine MRX-M240 for the subs...
  6. Different RCA Cables Causing Noise?

    Technical & Advanced Car Audio Discussion
    Alright, so I just finished adding a new amp and rewiring a few things. I have a boston Gt2200 for my front comps and now a newly installed boston Gt2125 for my rear coaxes. After connecting the rca's to my rear amp, I get very noticable alternator whine and other noise. The noise is only...
  7. Help with Alternator whine! BMW M5

    Technical & Advanced Car Audio Discussion
    Please help me diagnose and correct this alternator whine. I am somewhat of a noob, so please be gentle....... Car: 2001 BMW M5, battery is in the trunk Setup: Kenwood DNX9980HD (double din GPS, top of the line a year or so ago, recently bought used for a reputable person), JL HD900/5...
  8. Help? Groud Loops.

    Technical & Advanced Car Audio Discussion
    Hi, This is going to be a long first post. I have a 2004 Honda Accord. I originally had my sound system installed at an installer near my house. the system was -Alpine SPS-600C -Alpine SPR 6x9 -JL Cleansweep -Sound Ordnance M-4075 -JL 12W3v2 -JX500/1 This system had a little bit of...
  9. Clicks, Pops, alternator whine

    General Car Audio Discussion
    Just getting a new KDC-X994 into the dash with a Metra 99-3303 kit. While I was waiting for the kit I had the HU in the back connected with the amps and cross-overs sharing the same ground and power connections, etc. As soon as I moved it up front I noticed an increase in hiss (I never heard...
  10. altornator whine

    Technical & Advanced Car Audio Discussion
    i need to get rid of this. dont no what to do i changed my ground to a 4gauge now and sanded down to bare metal any ideas?
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