Tailgate Wiring Harness from '95 Bronco with defrost
Same as '78-96, except:
1) '78-(?)91 have a different main connector to the frame wiring
2) '78-82 have the safety interlock connector near the window motor connector because their switch is on the center mechanism
For a writeup on installation & alignment, read
this thread.
To add a simple self-diagnostic capability, wire a 12V lamp across the latch safety switch terminals, and mount it in the tailgate shell above the lock cylinder in the inside sill (through a carpet retainer hole if present). If either control switch is activated, and the only thing preventing the glass from moving is the safety switch, the lamp will light and be visible to a person using either switch.