ok i got a 99 5.2 sport, it doesnt have the overhead display, just this thing that says "clip" and its useless, ive herd all the wireing and sensors are already in the truck, and i just have to find my self a info display and it pops right in, is this true?

 

Yeah the sensors are already there. Playmaker did a write up on putting one in, search for it and it will have all the info you need to make it work.