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alternator noise

  172 cup'd extreme

Got bad alternator noise on coming from my speakers, i have an alpine amp and its all wired up properly all the cables dont cross and esp dont cross the fuel pump wires etc
i have 2 clean earths, decent phonos etc and one of them noise suppressors and i still have this stupid noise what could it be now ?????


  big fat japanese bus

ensure you have made a new earth on the chassis fort the amp and also double check your RCAs they can go faulty no matter how good they are

your H/U can also cause this, try making a new live and earth feed for it
  172 cup'd extreme

yeah ive wired in a new live and earth for the head unit, i will post back once i get my engine back in and can try