Installation is like a slam dunk in football. Just hook up one positive wire and one ground wire and you are good to go. In this case, I hooked a constant positive wire up to it. Sure, it has power all the time, but I wasn’t worried about it. That little green LED won’t draw much power at all. In fact, right after I hooked this up in Trasborg’s Cherokee, he let the thing sit for two weeks. There wasn’t even the slightest hesitation in starting. But for you topless guys, I’d suggest hooking it to switched power just in case you get a rainstorm and you didn’t put the cap on it.