—”It works your car computer pretty hard.”
And you learned this from the magic mushrooms?
CAN protocol is not exactly putting out high-resolution video.
Some vehicles do not power off with the ignition and could, possibly, maybe, could be draining your tired old battery that you never maintained.
Do you understand how auto computer networking works?
Everything talks to everything all the time.
Your headlights can brick your car. Your brakes can flood your engine if they has a mind to. There are no filters and no firewalls in your auto computer.