The pictures below are for illustration purposes only but they get the point across (I hope) of what I’m asking.

I’m going to tune a new set of projectors and I need to supply power to the ballast. Unfortunately I don’t have a harness to connect to the black connector on the ballast.

Does anyone know which prong is the positive and which is negative on this male connector? Until I find a harness, or if someone knows how to make a connector, I’ll just have to be VERY careful.

I want to tune the projectors without taking my front bumper off. Anyone done anything like this? Thank you!