Hello, I have an Ibanez RG270 DX guitar, and my bridge pickup has gone out. I purchased a Seymour Duncan Invader humbucker, but I am having a problem wiring it. The stock pickup on had three wires, bare, red and white. The new one has four, red, white, black and green. I know that bare and green are grounds, no issue there. I read that supposedly the red and white wires on the new pickup should be wired together, but should they connect where the old red one did, or the white? And what about the black wire, where should it go? Any help would be greatly appreciated.