Does anyone have wiring diagrams of the Reverse lights and the Trailer plug wires?

Got a 4x4 1996 Bronco 302ci manual transmission for boy's first wheels. The Reverse lamps and the added 6-wire (small round) trailer plug is not working. For both, something is wrong with the wiring between the front fuses and relays and the rear-most plugs because there is power and ground at the front but no power at the rear-most plugs for these two systems.

There's no power to either. I suppose it's a place where the previous owner DIY'd something and maybe tied them together, but I'm not sure. All fuses, relays and bulbs are good... I checked and swapped them 3 times. Ground wires on plugs, frame/wherever are good. All other devices and fuses and relays are working in the Bronco. Makes no sense other than a random broken connection that must not be shorting out because the 15amp fuse does not blow.

I can inject 12v into the back of the Reverse lamp sockets and they ignite.

None of the pins on the 6-wire plug are working in any mode, but my main problem to fix is the Reverse lights.

Attached are pics of the Left / driver's-side plug that leads into the rear lamps assembly behind the lenses.

What do these wires do?

The Left plug (in pic) with the Green wire comes from the front of the vehicle. The Right plug with the Orange wire comes from the lens assembly. These two wires connect together when the plug is put together. That seems odd.

The solid Brown, solid Black, and Black with Pink stripe are the same in both sides of the plug.

The previous owner replaced the entire main wiring harness to get one with the Cruise Control power fuseable link (for fire protection) which I assume is why those two wires are different colors, but I'm not sure. Maybe his harness was not new or was new and had a wire of different colors here and there?

Anyways, does anyone have wiring diagrams of the Reverse lights and the Trailer plug wires?
Thanks!

Rear most plugs for Left / driver's side lamps.

Closeup female end of plug coming from the front of vehicle. Note the Green wire that's a different color (Orange) on the male side of the plug.

Closeup of Left lights plug that leads into the lenses. See the Orange wire? The others are solid Brown, solid Black, and Black with Pink stripe.