Hey everyone i'm new to the technical side of the electronics world, i watched Daves tear down of that electronic rust protection scam unit and i was wondering, if the vehicles chassis was not used as dc ground , like if each wire that uses the negative chassis ground was cut and rewired to a junction that connected to battery's negative terminal instead of grounding to the frame would that potentially lower the amount of rust that would accumulate over time , i know it wouldn't be cost effective to do this but would it work? , i set up a nice lab and machine shop a year or so ago so i have all the gear to run tests and custom build whatever i need , any help would be greatly appreciated , thanks