I am adding the Fuzz Circuit found here: http://smallbox.zeonhost.com/projects/fface/
to my guitar. I can build the circuit alright, i just gotta question about adding it to my guitars current wiring. I want to put this circuit right before the output. The current + and - wires I have going into the output would now go right into the circuit, but where do I wire in the - from the battery? how would I wire this? Does this question make any sense? Thanks so much,

i kind of know what youre saying, but isnt that schematic for a fuzzz face stomp box?

Gibson Les Paul Studio w/dirtyfingers pickups
Gibson Joan Jett Melody Maker
VOX ac30 head
Marshall 1960 4x12 cab
Fender Hot Rod Deville
Output-jack tip
Input-from switch/pot assembly.
Battery (+)-to power switch/circuit board on
Battery (-)-to ground
Board ground-to guitar ground.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.