E46Fanatics - View Single Post - Ground Loop sound elimination help???
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Old 01-30-2013, 11:18 PM   #13
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Join Date: Dec 2011
Location: Brisbane
Posts: 527
My Ride: 2004 325i
Originally Posted by dirty vert View Post
but, with a gound loop issue....between the two grounds (1) at the headunit, and (2) the amp- you can have a volt or two difference , evidently you misunderstood what I'm saying... I do know well enough about this...
This is why I run the extra wire... leave the headunit grounded to the headunit and connected (to the same connection) of the headunits gound and run this to the amps gound too- this will even out the difference.
Don't believe me.... been there, done that.
I never said don't use it (hu) or amp ground...Just add the wire to remove voltage difference.
the12volt.com has more for you to read....
Does this mean that you would ground the HU up front, ground the amp in back, and then run a wire between the two grounds?
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