circuit board

All of the color coding labels are rubbed off of my circuit board and I have no idea where one wire connects. The brown wire from the main wiring harness coming out of the case connects where? If you have a 1995 Xplorer....can you take a pic of this wire's connector location or talk me through...

I'm currently rebuilding this 1995 Xplorer and am having some issues getting it up and running. Both bottom and top end have been rebuilt but I've got wiring issues with the main harness and 1 wire. Can't figure out where where the brown wire plugs into the circuit board b/c labeling has worn...