I was snooping around inside my bass to under stand the electronics today. I opened the control cavity and then took off the pickguard on my bass. There were 3 wire leaving the control cavity. 2 left it in the direction of the pup, and one randomly exited toward the bridge. Once the pickguard was off I saw that the pup had 2 wires running from it (u have an OLP w/ an mm pup, and there are 2 pup volume controls, so it makes sense) So, this leads me to wonder: where does that other wire go? (It was the wire from the tone knob, if it makes a difference) Is it connected to the bridge for some reason. Help out a novice!