So I followed my plug from behind fan switch to the firewall just above heater box and found another plug that was mashed behind the heater box. I pulled it out from behind (orange wire going through firewall to motor) and have no idea where it plugs into. Any wiring diagrams for the heater stuff? Right now I added power to a off/on switch just so heater will turn on and warm inside the car but no speed control. The motor or maybe fan makes a God aweful squeeling noise so not sure which to replace but atleast there's heat.
