Headlight section of harness.

nodemon said
72 Demon..
I've looked at pictures, but can't find how the passenger side / headlight section of wiring harness runs from firewall to core support...and alternator wiring as well.
Would like it to run as it did from factory. Also, there's a plastic, square "clip" type thing in the harness (red arrow in picture) going to alt that looks like it possibly has something to do with "mounting" somewhere..? Was there something on factory valve covers for this..?
Any help is appreciated..! Thanks.View attachment 1716350914
View attachment 1716350894 View attachment 1716350895

To begin with, the headlight harness is routed town the driver's side inner fender and behind the battery- the route should be obvious once you see it, since there is a recess in the fender where it goes, and it is held in place by nylon straps available from many repro houses.

It also feeds the washer motor and horns along the way.
Then it goes across the radiator yoke and feeds the head and signal lights.
The alternator (and AC if so equipped) harness is routed as you have it and was retained by tabs on the factory valve cover. It should be easy enough to make a small bendable sheet metal tab(s) to retain it, held on by a valve cover bolt.