This is a high end project I did for one of my clients. I normally do home installations, home theater, internet/wifi, phone systems, multi room audio. Been working for this family for over ten years before he asked me to correct all the satellite tv and audio issues on his motor home. Then he started asking me to help with metal fabrication work on different projects. I helped with modifying rock sliders with pop out steps to fit on the jeep to work with the existing fenders and did all the electrical wiring for the automatic steps.
The jeep is tall and the wife is on the short side. After he had the conversion done to add the corvette motor and trans with a second computer to the rock crawler jeep I was tasked with trouble shooting the left over electrical issues with no map or diagram of the changes the mechanics made to his wiring. All I had to work with was logic, a test light and the original wiring diagram for the jeep before it was modified. It was a challenge, took 10 hours just to figure out how to get the air conditioning to work again.
Apparently when one of these conversions are done the original computer is still needed to control the dash, gauges, interior lighting, etc. But it also needs a second computer to control the engine and trans. It's a challenge to move sensors from one computer to the other and make everything work as if everything is normal.
The mechanics that worked on it before the conversion did a lot of electrical additions, adding some of the aftermarket relay and wiring systems. They didn't bother adjusting the length of the wires and instead just waded them up and tie wrapped them under the hood, I had to clean up that mess too.
