1970 D200 Dash wiring question

[BrooklynBeer]

I have most of my 1970 D200 rewired with a universal Painless harness except the dash cluster. Namely the fuel gauge. Since i am using aftermarket gauges I am not bothering with temp, oil, amp. But the fuel gauge has me scratching my head. My manual is not much on detail. I have enclosed a picture of the factory wiring. What is the large (12 gauge) red wire going to the fuel gauge? Is it switched power? Why do i have a daisy chain of jumpers from fuel to temp to oil but attached to nothing else but each other? And the large 12 gauge white I am assuming is a ground with the condensor jumped to power on the buzz bar for radio static for non suppressor core plug wires? Truck is still ballast resistor with an upgraded starter relay from an Jeep wagoneer.

 

[7mopar]

What type of manual do you have? I don't suppose Painless provide anything but wires. Does the harness even have wire ends, fuse box and bulk head connection. I have never worked with Painless products. I just noticed the Painless universe harness. What vehicle is this universal ment for?
Sorry I couldn't answer your questions. But without knowing exactly what you have this could be all but painless.
But the Chrysler fuel gauge doesn't work off full voltage. If your using an aftermarket fuel tank will likely not work correctly anyway. Otherwise there should have been a fuel guage voltage limiter attached to the back of the original cluster. Without it plan on replacing the gauge. The side going to the tank is nothing but a variable resistance ground. Grounding to a solid item for any length of time will also burn the factory guage up.