Wiring for 1990 GMC Sierra 1500 Z71

Hey guys,

I'm attempting to install a remote start / automatic door locks in a 1990 GMC Sierra 1500 Z71 Off road 4x4. The remote start is a ProStart and the truck already has automatic locks, and no factory security features at all no need for any bypass moduals.

I'm looking for a wiring diagram for the harness under the dash that will allow me to find the wires I'm after to successfully install this kit. ANy help of where I could find one?


Thanks!