The few pinouts I could find all call for the black wire to be ground but disagree on the colors of the other two wires.
The other two wires go to B+ and ACC. B+ is usually the striped wire. It shouldn't hurt anything if you get them backwards, so experiment. Others have wired both to ACC and reported good results.
Here's how one member did it but the wire colors don't match yours.
Edit: FWIW, some 453's use two of the pins for a temperature sensor and another pin for backup lights on.