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      02-28-2012, 09:02 PM   #11
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kmarei's Avatar

Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

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Originally Posted by jamze132 View Post
You do not need a special harness or anything. I tied right into the factory amp with speaker wire taps. I can't find the wiring diagram we used but it's floating around the internet. We tied the speaker wires into a line level converter and poof, you have an amp + sub tied into your factory system. Took 2+ hours and a 6-pack of beer.
Well yes you don't NEED the harness
But if you want to keep everything stock as is
Stripping wire (which happens when you use wire taps) is not really kosher
I did that on my old car, but that was before Technic made it this easy to keep it looking clean
This user has been banned from the 4 series forum because he doesn't sing its merits like the admins want us all to