According to this post, https://www.buildyourownguitar.com.a...l=1#post208393
the black will be the hot signal, green and the braid shield should be wired together to the back of a pot and red and white twisted and soldered together and the joint insulated and not connected to anything.
There are many ways to connect up the wires, and as long as all 4 of the coloured wires are connected somehow (just not all to ground) then you’ll get some sort of output from the pickup. But it may just be from one coil, or the two coils in parallel rather than in series as intended.
I’d try the above wiring on one pickup first and see what it sounds like.