I am putting in JB's/Jazz pups in a Jackson Randy Rhoads Flying V (RR3). I can't seem to get the wiring right. Coming of the pickup, black is hot, red/white tied off together and the green and bare wire are the grounds. My research tells me that the Jackson is the same except the black and green wired are opposite colors (green hot and black ground. I wired it up accordingly and get nothing. What am I doing wrong? Thanks!