Cutlass HSS Single Coil Swap – keeping Silent Circuit with 2-wire pickups

This question is sorta floating around, but I haven’t been able to exactly decipher how to swap the stock single coils (3 wires) with 2-wire single coils, and keep the silent circuit.

I have seen beej mention that the silent circuit goes to the ground on the pickups – I’m just not exactly sure how to physically wire that up.
The green and grey wires both go to the circuit board, and the red hots go to the switch.

Thank You!
JB