Dover composite PI Board

i can't find a replacement part number for an older dover composite PI for the car station. the boards are that off white color threes 2 of them piggy backed on top of each other. theres a transformer off to the left side of the 2 boards and theres a wiring harness on the right side. the color order is listed below going from top down

brown
red
orange
yellow
green
blue
purple