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Red 12v wire?? Where does it go
1985 gmc k2500 4wd vinM 350ci
Alright driver side of firewall in engine bay there is a 20amp glass fuse. Coming off it is a red 14gauge wire. It's about 3 feet long. It seems like it goes into the cab. It has a constant 12v. Idk where it goes. Can't really find it on the wiring diagram and I'm a little confused with some abbreviations in the wiring diagram. For some reason I think it's 4wd related idk.
Anyone got an idea?
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