SmartWire is what I have used for years, it allows you to do things that are not possible with the ordinary analog wiring. The only thing that I would say about this system is if you are computer literate you'll be fine, if not get someone that knows computers and programming to set it up for you. SmartWire is a typical PDM (Power Distribution Module) that is designed for racing. It has one power input from the battery and can be controlled by any number of switches you desire (both analog and programmed). The number of loads is up to you... all you need to do is program them.