buddy guy
Senior Member
its coming through a big grommet in the firewall from what i can tell. everything is functioning fine on the truck at this point. it's a thin wire. about the gauge of speaker wire but not speaker wire head unit and speaker are working fine) extra wire for some feature i don't have? it was kind of sitting between my brake pedal and my parking breake dangling down, bare end on it.

edit- any chance this is one of those underdash light wires (which i don't have those)

edit- any chance this is one of those underdash light wires (which i don't have those)