- Edited
So per the whatsapp chat.
Black is hot on the bridge pup. Tape the red and white together. White is hot on the neck pup. Then just follow the diagram substituting their hot and ground colours with yours.. and Robert is your fathers brother!
For the grounds.. just solder the ground onto the back of a pot. Anyone should be fine. That is, the ground from the pups (which could also go onto the case of the pup switch)... the ground from the spring claw or bridge.. and the ground from the input jack.
Be sure to install them in the right direction. Ie.. with the wires underneath closest to the control cavity. With covered pickups you cannot see which is a slug or screw coil.. so the wires are the only indicator. Lest you mess the polarity of your pups and your fiddle sounds more quacky.. and less rock