Mystery lamp ?
The dome light cir would make more sense.
By the way if your car is a console automatic the light for PRND21 and the tach comes from the same dash light cir.
Orange wire
But it would only illuminate the key when the parking or headlights were on.
The dome light cir would make more sense.
By the way if your car is a console automatic the light for PRND21 and the tach comes from the same dash light cir.
Orange wire
