hectic4u

I am trying to install a pioneer NAV-SYS910DVD which is the nav box and a 6.5 fold out dvd screen. My question is does anybody know where to find the speed sensor wire. I read that the wire goes to the computer of the car, but i dont know where that is either. The nav needs a way to sense the speed of the car. I dont want to have to buy the seperate speed sensor piece through pioneer.

PS: Does anybody know where to get a custom faceplate made for this car. (double dinn):wow: