I am starting to put my car back together and I am wiring the dash up and I am having trouble figuring out the wiring for the stock rear defogger. I purchased all new harnesses from American Autowire and just want to know how to run the wires from the dash switch to the defogger in the rear. The car is a 69 442 Holiday Coupe.

I looked at the wiring diagram but can't find anything.

Thanks
Sean

 

They run through the plastic sheath under the drivers seat to the trunk area. Then there are a couple? clips that secure it to the rear of the back seat back, if that makes sense.

 

At some point, the defog harness has two wires. One is for high speed and the other is resistance wire for low speed.

 

I've removed a handful of these options from cars & have always found the resistor wire right beside the main wire in the plastic sheath.

 

Thanks guys. My main issue is the switch has a three wire harness coming off the back. I do not know how I tie this into a powered circuit. I have the wiring that runs to the back of the car and that is not the issue. I was really hoping if someone had a diagram for the entire circuit.

Thanks again
Sean