Reducing resistance in the circuit is the key to it all. Adding bigger alternators more batteries etc is only gonna mask the problems at best. The cars didn't leave the factory with electrical troubles(we hope) so the problems have developed over the years of use or abuse by the elements or by man. Going through the entire system & reducing resistance by improving connection & increasing wire gauge where needed is the best way to go. Electricity kinda flows like water. That's why they don't hook up a garden hose to a fire hydrant! Too much resistance- boom!
