3 Black Wires?

[Bravo]

I purchased a pre-assembled pot/volume/switch set, and I have 1 white wire (which I assume is the hot wire to the power jack), and 3 black wires. The 2 black wires soldered to the volume pot go to the ground on the power jack and ground on the body.

I also have 1 black wire leaving the pot right next to the volume pot....

Does anyone know where this black wire is supposed to go?

[AxeBlaster]

It could be another ground wire to be screwed into the body.