I have no idea when it comes to wiring. I am attempting to wire up a neck and bridge bullbuckers with split coils and push pull pots. With a treble bleed. I copied this format from my ex4 bass where it works fine. To me it all looks ok, neck pickup (grey wire) seems to make noise but bridge does not. I have no idea how to use a multimeter, but I did acquire one from my mother-in-law who used to build all sorts of things. Have I wired something wrong, or how do I use the multi Metre to test if humbucker is working properly.