We have been installing remote starters on our vehicles for about twenty years now. I have installed a couple and had the rest done professionally. Unless you are really up to date on vehicle wiring, pay a pro to do it. The brand we have been using is Code Alarm and they are readily available on Ebay etc. I have never had one go bad on any of our vehicles. Once you have one, you will never want to be without one. Even in the summer, it's nice to get into a cool car.