Heater control

My cables aren't color coded, they are on a 67 Barracuda. The top ones are for heat/defrost you can trace these to the top rear (front) of the heater box. The bottom opens the door to the heater core, it lets heat from the heater into the cabin. I think that one goes to the door just to the left of the heater core. I hope that helps. I wonder what year they started to colorcode them??