Datsun wiring Hell

[We Live]

Hey whats up guys. I have a 1971 Datsun S30 that I'm wiring. Ive reached the combo switch and that is where things get bad. The owner has like three of these cars and brought me combo switches from 71', 73' and 78'. Unfortunately he brought me turn signals that don't match up. I need some help with this one. I have a 2 yellow wires on each combo switch that I can't find in any FSM.