After seven years down time on my RV-4, I'm trying to get her flying again. I've lost/misplaced the connector from the optical detector of my Braal Tach. The display connector is intact with six pins,all from white wires. I have no clue as to where the detector multiple wires,red,black,white and shield,should connect to the display connection. Does anyone have a wiring diagram or knowledge of how to make this connection?