1964 Dart Wiper Switch working "weird"

[Smcomanche]

Hi fella's, I am getting close completing re-wiring the dart. I was validating my back up lamps on found some weirdness I was wondering if anyone has encountered. The back up lamps are powered by a 30 amp breaker from the wiper switch. With the switch in the full "off" position (counter clock wise) the back up lamps do not work. With the switch a few degrees clockwise the back up lamps will actually blink, and you can hear the breaker dithering. A few more degrees (wipers still off) then everything acts normally.
The new PDC from American Autowire has a 10 amp fuse feeding the wiper. Any thoughts on eliminating the suspicious breaker, and upping the fuse amperage to accommodate the back up lamps?

Attached is a photo before I removed the dash. I neglected to take a photo with the new wiring.

 

[RedFish]

The breaker is supposed to protect the wiper circuit from overload should the wiper be frozen to the glass or other fault. I might replace it but not delete it. It really has nothing to do with reverse lamps. Evidently you have a failing wiper switch, internal short, worn contacts, but if the wipers do work in all speeds...
Yes they picked off switched 12 volts from the wiper switch to power the reverse lamps in early models. Saved a foot of wire i guess. You could get that switched 12 volts from any switched 12 volt source. Move it away from wiper switch. Later model wiring diagrams will provide info on where the factory moved reverse lamp power source to. Could be the same fuse but directly from fuse box, a weld splice in the harness, etc...