Does anyone know of some sort of internal cavity jacks (2 per pickup), that would allow the player to un-plug a pick up and put in a different one? I've seen some pics posted where they switch out a P style pick up in the neck position for a J pickup, Usually hiding the extended body routing via different pick guards. I'm looking really to switch out same sized Jazz type pickups occasionally without soldering. To me it seems like an easy electrical problem to solve with 2 wires per pickup. Thanks!