Been there done this. such a waste.I was sitting on top of a hill at another job. I know I counted over a hundred and not even half of the where turning.
I would be more afraid of not having enough braking power when needed. If you read through the the Brake issues that I posted. There is a lot of information there from others.
As said by Chryco Psycho
I think that is the most practical and inexpensive way. If I recall there is a bushing option...
There is a list of brake fixes and issues here. https://www.forebodiesonly.com/forum/threads/brake-issues.37383/#post-225202
https://www.forebodiesonly.com/forum/threads/drumb-to-disc-swap.25213/#post-149747
The dark blue with a white tracer. Is ignition 1. In short. Go to the steering Column plug and recheck both sides again.
A bit more if how things get power.
Take notice to the diamond shapes with numbers in them. Those are the splices.
Steering column plugs. Ignition switch connections...
Look at the fuse box in the diagram post #6. One side is marked Batt. When the battery is hooked up there is always power there. On the ACC side there is only power there when the key is on. This is the back side of the fuse box. Note the bus on the red and black side do not go the whole way...
The wiring in general is the same. There are some added or subtle differences over the years. Like you seen with the door switches. The California spec that's highlighted in yellow. Don't know what you might come across. 73 and up electrically assisted choke control?
I do think there were different A01 door switches some years. I know 71 is different then 72.
https://www.forebodiesonly.com/forum/threads/complete-dash-harness-replacement-and-the-signal-lights-dont-work.39659/#post-228903
All I can say is that the color is different than stock wiring. It should connect to the door sw. Not sure if you have the right door sw. That wire you are showing goes to the dome light. The dome light is powered by the door sw and the dimmer sw.