5 Wire Humbucker Wiring Diagrams . Humbucker wiring coil p90 diagram split tone guitar volume buildyourownguitar. Wiring them together in parallel will produce a brighter tone (with somewhat less volume than series), but will still be humbucking. electric guitar Correct wiring for 3 Humbuckers Music Practice from music.stackexchange.com Humbucker wiring diagram 5 way switch source: South coil start is green; Humbucker wiring coil p90 diagram split tone guitar volume buildyourownguitar.