I.M.O.,by the time you buy all of the color-correct wire and terminals,etc.etc.etc.,you'll have more time and money invested than if you bought a higher dollar unit. I'm installing an "American Autowire" with 18-circuit fuse panel. I may never use half of the acc'y terminals,but I plan on installing a 12,000 Lb. winch.so I wanted to up-grade for a fuse block,(one-wire 60-amp alternator,H.E.I. dizzy),as opposed to a circuit breaker, incorporated into the origional system.