Went ahead and tried to complete the diagram with a little reading. I have no clue what the Pitbull factory used for colors however, so any help there would be appreciated too:

Black: Start of North coil
White (orange in diagram): Finish of North coil
Green: start of South coil
Red: Finish of South coil
Bare: ground

Red and whites are soldered together, taped
Greens are soldered to the bare wires
Bare wires are soldered to the back of the volume pot
Black wires are soldered to opposite sides of the switch

Other than that, the Pitbull wiring diagram should be correct, though I received with an extra ground running from the volume pot to the input jack.

https://imgur.com/a/vHwM8th