'87 5.8 C6

Guys I need an underhood wiring diagram of the large round plug that passes thru the fire wall. I've found a thousand schematics of the ecm plug but none of this round plug. 2 of the wires have been cut & patched. A thicker red wire with a green tracer & a brown wire with yellow. Why these wires were cut by the last owner I don't know. They installed about 10-12" jumper wire on both of these wires. What gets me is the brown / yellow is jump to itself but the red / green is jumped to a white / blue wire.

Now much of the bronco has been bypassed (fuel pump, key switch, headlights, neutral safety, etc...) I'm trying to fix this harness & since there is a color change, I dunno if they bypassed anything else or not.

I could really use a schematic pic if anyone has one.

Any help would be greatly appreciated!!!