E46Fanatics - View Single Post - Alternator Whine issues with complete custom Sound system!
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Old 10-03-2012, 06:46 PM   #17
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Join Date: Oct 2011
Location: Seattle
Posts: 975
My Ride: 2002 BMW 325i
Good info! I've had this same issue in the past and actually gave up for a while and just ran my speakers through the stock amplifier. Did the same stuff, tried different grounds, ran wires down center of car, and nothing seemed to help. Let me know how this turns out for you and everything you did!
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