You could try this for the mudbucker:
Basically:
- Connect the yellow and purple wires together
- Connect the white and green wires, and ground them
- Use the red wire as your output
I couldn't see a green wire on the mudbucker - so I'm
assuming it might be ground... Also, I couldn't see the white wire very well, but I think its that one on the treble side of the neck coil. See if that meters out around 30K.
Unfortunately, I can't see where the wires terminate inside the minibucker, but try this same config and see if you get a 6-8K reading. Hopefully, they used the same color keying on the wires...