It's nothing more than a simple button that you wire into the ignition harness. Does the exact same thing that turning the key to the right-most detent does and that is to start the car. You still have to put the key in the ignition and turn it to run so this really is nothing more than something for looks. As far as installation, you'll have to pull apart your dash to get at that wiring. Not sure if it's plug and play as for that price, it should but we know they are on the high side so you may end up having to solder it in. I personally think that button is ugly as hell and I'd put in a bulgin vandal resistant button and pay 1/3rd the price and end up with something that looks 10x better. But that's just my opinion.