The wiring on my Mercedes 220CE is trash

The biodegradable wiring on my Mercedes 220CE (W124 / C124) is a complete mess and I think I'm in over my head. It looks like I have some kind of short-circuit that is affecting the throttle body, fuel pump, and the dash lights. I'll need your help on this one. Mercedes-Benz W124 The Complete Story book: https://amzn.to/3aHiQde AstroAI multimeter: https://amzn.to/3ttv4g3 Guide to European Automotive Electrical Systems book: https://amzn.to/3aTTWr2 Don't forget that you can get 10% off an HPI check with carVertical using this link: https://www.carvertical.com/gb/landin... ============================= Gear Used to Make This Video: ============================= GoPro Hero 10: https://amzn.to/3NuMKQW GoPro head mount: https://amzn.to/3uAjtM2 Magnetic mounting system for GoPro: https://amzn.to/3JVf78P Better mic system for GoPro: https://amzn.to/3NvIVeh ============================= Support me: ============================= If you're enjoying the content then you can show your appreciation by buying me a beer: https://www.buymeacoffee.com/NinoR ============================= Follow me: ============================= Instagram:   / ninorosella   Twitter:   / ninorosella   ============================= Affiliate Links: ============================= Some of the links in my video descriptions are affiliate links, which means at no extra cost to you, I will make a small commission if you click them and make a qualifying purchase. This really helps me as a content creator and means I can continue to provide content into the future.