Plugging fifth wheel into bumper plug?
So on this 2003 GMC 2500HD that I bought recently I was finally installing the fifth wheel hitch and the brake controller, then I cut the tie straps from the wire harness between cab and box to hook u...
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Either will work, but I've always used the 7-pin receptacle in the pickup bed. I use the 7-pin bumper receptacle to power the trailer repeater for the TST 507 tire monitoring system.
Rusty
Rusty
