I bought a generic washer pump to replace my broken one and the connection used on the OEM part is different from the two prong on the generic. It's looking like I'm going to have to splice the wires, but I have no idea which one is which. The vehicle connector has white and blue wires. I know the blue wire is supposed to go wiper fuse 20A, and the white goes to the washer switch. But I don't know which of these goes to the negative and positive prongs on the pump. Anyone can point me in the right direction?