I have a '58 3200 with factory electric wipers. I have tested the motor and everything is great. I now need to wire it to the truck. I have the switch which grounds two wires for high and low speed operations. What I need to know is where the hot wire that goes directly to the motor would have tied in. The Factory Assembly Manual has a page for the '55-'57 electric wipers that are different from the '58. The '55-'57 pulls the hot from the hot side of the ballast resistor. That makes sense since it is probably the closest to the wiper motor and only on when the switch is on. However, it is not fused. I don't see a location on the fuse panel for wipers. Any idea how a '58 with factory electric wipers was originally wired?

Thanks,
Chad