#1
i took out the electronics in my guitar and i found a lone wire that was leading into the guitar itself? what does it do?
#2
Ground?
DEAD. AIR. SPACE.

Fender American Strat/Tele->Vox V847 Wah->EH LPB-1->BK Butler Tube Driver->Big Muff Pi->MXR Carbon Copy->EH Small Clone->Vox AC30/Orange Tiny Terror/Blues Deluxe RI
#3
thats what i think it is. i connected two of teh pots and it went straight into a cavity