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Old 07-06-2012, 06:23 PM   #3
CWI
Helping Build America
 
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Drives: 2010 2SS/RS,LS3 2013 Duramax 3500HD
Join Date: Aug 2008
Location: Freeport LPG Export
Posts: 3,835
If you take out the trunk trim, you will find a hole in the chassis structure just below the rear deck. Make sure to sand off the paint and use a star washer to ensure a good connection. Make sure to use wire at least as heavy as your power cable.

I used this location because it was convenient and quite adequate. I am running a 1/0 cable from there to a block for three high power amps and have no problems whatsoever. No power issues, even with the BA head unit, there isn't even any detectable hiss between songs at high volume
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