New to the forum. From Alabama. 1995 Polaris Xplorer 400.

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 off the board.