Overall it works well when it's working. What I mean by that is sometimes you have to take it out and plug it back in. It does not work every time you start your truck. If you are going to the store or somewhere for a short time it'll kick on when the truck is started. But if you come back the next day you have to unplug it and plug it back in. I wish I would've known this beforehand, but it's not that big of a deal. Does the job when it's working and finally gave my truck what it was missing.