Hi all ....I need some help, I brought a GL-56 and the guy had a seymour duncan in it and I wanted pearly gate back in, well the guy put the pup in but didnt wire it in. So I wired it in with the black wire going to the selecter, the green and bare soldered to the vol. pot and the red/white soldered together and them heat shrinked. when I play guitar through med to hi gain I get really bad interference noise, but when I touch the brigde or machine heads it goes away. So I think I have a eathing issue but ive wired the pup as the diagram states....should I maybe swap the green and black wire around?