Ahhhhh, OK! I see now.

The red & white wires twisted together are the individual coils joined up in series. You need to put heat shrink tubing (or electrical insulating tape) over the end of that pair so they don't touch anything else and create a short.

The green and bare wire twisted together are the ground/earth and get connected to the back of a pot as shown in the diagram.

The single black wire is the positive or "hot" (signal) wire and get connected to the relevant volume pot as shown in the diagram.

Easy peasy!