i installed a DiMarzio Air Nortan in my Ibanez RGA121's neck and when i switch to the 5th position, full on neck humbucker, it sounds coil tapped, like the 4th position which coil taps the neck. i wired it up to where the bare was grounded to the master volume, the red(HOT) to the 3rd post, the white to the 6th post, the green to the 7th, and the black to the 8th. reason why i did that was because thats how the orginal V7 pup was wired. should i of grounded the green wire and soldered the black and white to the same post? if so, should they go on the 6th or the 8th?