Need a useable park lamp source on the DRIVERS SIDE in cab. Like to use the front park circuit. Poweing some LEDs and not reinventing the wheel to run wires to the BCM. My truck has the powescope mirrors so what wire is the 12v?

 

Ok so what I figured out with work on 2013 and 2014 WITH OEM powerscope mirrors. I traced the signal back from the door connector on the a pillar. It comes from the floor harness that runs up behind the parking brake bracket. There is about an 18ga yellow wire with blue tracer. It is part of the 15a front park lamp circuit. I spliced into that an all is good. As for other trucks w/o powerscope, you may not have this as the wire won't be there for the mirror.