Gene Johnson

Bought a 85 PU based RV (Dolphin) that was swapped to 5 speed from automatic. Iput in a rear view camera, but back up lights (and whatever else is connected through ATs switch are't connected) Can anyone provide wiring color codes and list items that would be connected through the swtch on the AT?
Most important are the backup lights and there may be other things that should have been connected as part of the swap. Is there a list and wiring color codes? Where should the other wires connect? Thanks!

millball

The ID plate under the hood, center of the firewall should give a chassis type number.

From this info you can find wiring diagrams specific to year and type.