I have a '99 Ranger and the headlights have to be turned on and off manually. Sure, this isn't a big problem for the most part, but a lot of times in well lit parking lots and highways I forget to turn the headlights on. Sometimes there are people courteous enough to flash their lights at me to remind me I need to turn them on, but usually I just end up driving around with no lights until I get to a dark patch of road. I'd like to get something like this to install so that the lights come on automatically. Have any of you guys setup a 3rd party automatic headlight system? Or does anyone know of a better system? That chip isn't very expensive (I think about 12USD) so I'm not worried so much about wasting 20 bucks; but I'm fairly concerned about messing with my truck's electrical system. I'll accept any ideas or suggestions! Thanks!