Broke open the display to see the pinout and how it communicates with the controller.
https://goo.gl/photos/6TcArB7tu1HAvTou8
This is what I found:
TC244334 - Model number of Display
Pinouts:
HRSD - Not Connected
PWM - Not Connected
VCC - Red +48v Ignition Supply Wire
DMS - Yellow +48v...