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01-13-2013, 02:38 PM
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#12
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Private First Class 
Drives: 2009 335i/E90 LCI
Join Date: May 2012
Location: Vancouver
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Quote:
Originally Posted by Technic
The 20-pin is the OEM speaker main connector harness -your aftermarket amps outputs are wired to it. You need to remove the left trunk trim completely to see the whole OEM wiring.
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appreciate the info!
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