Gsxr has a fantastic write up on how to do this. It's much easier than you think. Now I can nearly blow my trunk lid off with my jlw7-3 and the amp won't cut out. Still dims the dash lights even with a 150a alternator.

Use the search button

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Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2