Just follow this. The pickups have two conductor wiring, the diagram shows four conductor. Follow the directions in the box that says "For single-conductor humbuckers."
On your pickups the center wire inside the white insulator is the hot wire. The braided copper wire on the outside goes to ground. The tab on the switch that is part of the metal case goes to ground, so you can also solder the pickup's ground there. Then a wire from the switch ground goes to the back of the pots.
Your switch only has three tabs, so treat the middle one like the two connected together in this diagram.
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