Hello All, Looks like I caught me a mystery fish... I picked up this Jazz Bass a few weeks ago for a pretty good price (up front disclaimer, I am pretty new to playing and the talk bass forum here). I intended to upgrade some parts and mess around with the sound on this one, as I have a bone stock Jazz as well that I intend to leave that way. Anyway, I got some Seymour Dunk Quarter Pounders and today, as I was pulling out the old pickups, I noticed some interesting changes that I didn’t see in any wiring diagrams. First off, it looks like the original owner (I’m the third owner) added magnets to the bottoms of the pickups. Secondly, he/she added what look like ground wires to the lines going from the pickups to the pots. Lastly, and maybe most interestingly, those grounds didn’t go anywhere that would obviously conduct electricity - just into the body behind the pickups. That makes me think either the guy had no idea what he was doing, or he added conductive paint to the inside of the pickup housing’s. I admittedly have no idea what I’m doing, so I bend my knee to the great TalkBass Oracle and defer to the collective wisdom on this one. Anyone know if these are just modded stock Fender pickups? Any benefit to those grounds? I was going to use copper shielding on the housing anyway. Edit: I tested the resistance on the inside of the housing, and nothing I could find in the pickup housing carries any current, so I think conductive paint can be ruled out.