Quote:
Originally Posted by SkylineNXS
I have a 00 sierra extended, so it may be different, but right behind the parking brake pedal there is a "black box" cover, if u remove that, i do believe that is where u are supposed to plug in, at least my aftermarket controller wires to this location...
Brad
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My 03 GMC, and 02 Chevy have the plugs both in this same spot.