What is the wiring diagram for a factory radio in a 1989 Nissan hardbody pickup?

Constant 12V+ Red/Green Switched 12V+ Green/White Ground Chassis Illumination Pink/Green Dimmer n/a Antenna Right Front Front Speakers 4" x 6" Doors Left Front (+) Brown/White Left Front (-) Brown/Blue Right Front (+) Black/White Right Front (-) Black/Red Rear Speakers 6 1/2" Rear Corners Left Rear (+) Red Left Rear (-) Green Right Rear (+) Blue Right Rear (-) Pink I got this from http://www.the12volt.com/installbay/stereodetail/1619.html. It has wiring diagrams for remote starts, radiOS, and cruise control.