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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. Tweeters whining noise?

    General Car Audio Discussion
    I just installed my new audio system. Amp:Pioneer GM-D9065 5 Channel Amp Front Speakers: Polk Audio DB6501 Component Back Speakers: Polk Audio DB521 Coaxial Sub: Not yet installed It sounds great, until I drive for a good amount of time, then the front driver side tweeter stops working and...
  3. 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...
  4. Noise in one channel only

    General Car Audio Discussion
    HI all! First post here. I have done a search and could not find anything addressing my issue, but apologies if I missed something. I recently replaced the stock speakers in my car (08 Lancer) with some Alpine SPS-610C's in the front and SPS-610's in the rear. Still using stock head unit...