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Big GMCGuy

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  1. Hello, I am looking to add an amplifier to my 2018 GMC Sierra. It's the 6 speaker non Bose system. I also have an aftermarket head unit. I was wondering what the best way was to add an amplifier for the speakers. I was thinking of spicing the wires off the green harness that goes into the sound processor but I would need a wire diagram and to make sure that's ok to do. Thanks.
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