I Pulled the vaccum wiper out to replace it with an Ele. wiper out of a 55 chevy i found.(Works Great) I understand the short wire goes to the mounting screw.(Ground) The Ele. motor wire I've read should be use with a Ballast Resistor or can i wire it down to the fuse panel sence its a 12v Wiper motor. The car is not stock It has a Altenator and HEI does this matter.