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Roadmax
01-16-2006, 04:18 PM
I need info on how to properly ground the BMW 6 disc trunk mounted changer ('99 E36 M3, h/k system setup). Is there any outer chassis screw that has a direct path to the ground portion to the units power supply (that holds the power board in place)?
This is in order to eliminate the ground loop interference ( high-pitched whine that increases with acceleration). I'm installing Traffic Pro. There is a bad grounding on the trunk changer and need this info.
The fix I've heard is grounding the cd changer or finding a bad ground somehow connected to the cd changer.