maybe email logitech, you've already voided any warrenty so they will not fix/replace it for you. but (big but) they might send you a wiring diagram. tell them you are planning on fixing it yourself.
I had a quick Google myself and also turned out empty handed, no photo's or diagrams anywhere
What I can tell you is that forum member Fordman had a similar problem and got a set of pedals from Logitech as his warranty was not void. I assume he still has the old spare set and maybe if you're real nice to him he might throw some light on your wiring dilemma
E:
OT:
These infractions, are they issued off the bat or must the post be reported a number of times first???
i have seen those pics and i have looked but all good i have noticed the wire was screwed into so i have just brought a g25 LOL thanks anyways i will no be using the shifter on the DFP as a handbrake !