Side Marker/Parking Light Issue

[Sir Psycho C10]

Happy Holiday's Everyone. First post for me. Got a unique one here. Got a 72 C10 with electrical Gremlins. Prior to the engine/trans swap all electrical was functioning as designed. Today is a different story. Here we go....

With the parking lights on (switch 1/2 way out) I have lights, except for the right side front marker and right side front bumper light....BUT, when I put on the right side turn signal OR hazards they blink....so I know they work. They are getting power from the column just not the headlight switch. Installed new headlight switch prior to the swap.

The left side will blink together with parking lights on and alternate with headlights on (or vice versa). The right side will blink together only with turn signal or hazard.

Something tells me my issue is under the hood. They eliminated a TON of wires with the swap. Can someone verify what color wires you have going to each side and where it terminates at the firewall. I think I have 2 wires on the left side and only 1 on the right side?

Thanks for your time, Jim