Unless I am misreading it, what is in the guitar is different from doctor j's diagram ...
going from right to left:
the white, grey and purple wires go to a pot (bass or treble - cant really tell which)
and the blue, green and yellow go to another ...
the orange and black go to the blend control ...
the brown is shrink tubed to connect with the red that goes to the battery ...
and the red is the loose one ... any ideas where this should go?