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Old 04-13-2012, 06:04 AM
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Technic Technic is offline
OEM Audio PnP Integration
Location: Florida
Join Date: Jun 2002
Posts: 7,699
Mein Auto: 2017 M3
Originally Posted by laced1985 View Post
Technic or anyone else out there that can help me.
I have this harness from Technic and it is very high quality(thanks man) I installed it yesterday and linked it all up with my Boss PH4.400 Phantom amp but now have the annoying alternator whine. I guess this is caused from bad earthing.

So my question is where is the best place to earth on my E60 '2005'??

Thanks Guys
In the 3-Series there is a ground point close to the OEM amp, try to find one close to where the E60 has its OEM amp.

If there's none then ground it directly to the OEM battery. All audio grounds should converged there.
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