I agree. It's not everyday knowledge so im happy to share it. Having a messed up electrical system is not fun. I had to rebuild the main harness on my 03 4runner because I forgot to add a critical diode. Voltage back-fed through a grounded circuit and melted the harness, didn't have the money to spend on a new one so I spent 4 straight days rebuilding and testing it on the bench!
Soon as i wrap my EE degree up I would love to go to work for GM, they lead the way with functional data circuits on domestics. (dodge ****s the bed!! )