Wiper wiring 3-speed '74 dart sport ?

mymopar.com has downloadable wiring diagrams, though that isn’t going to help you with bare wires.
On my 68 (might not be the same, yet a good chance) red, brown, & green from terminals E,F, G, connect directly to motor, blue (H) goes through the “park” switch under the motor cover.
Drawing is switch, through the firewall, to the motor.

View attachment 1716097491
Thank you for this! helped immensely in my 74' duster re-wire project. Switch was a bit different layout but having the terminal names to wire color was magic!!