Resurrection of the old Reverse Light Thread

'Cuda_ragtop said
Mustang wiring is 3/wire, Turn/Brake, Park and Ground, for 1157 bulb.
I'll adapt the 69 wiring to accommodate the1157 Turn/Park wiring and switch to LED bulbs

You can use the ground and one of the 2 filaments (which ever is closest to the wattage of the OEM backup lamp)

Make an adapter cord so you don't have to chop up the Chrysler OEM wiring