I have a set of Seymour Duncan Lightnin' Rods pickups in my very first bass, an Aria P-bass copy. They came with an active harness and everything including the pots, which were super small. I don't have any of the pots, capacitor, or the battery clip anymore. I have no idea what happened to them. I really don't like having a battery, and I like passive tone just as much as active. Is it possible for me to hook these pickups up as passive pickups? I have some 500K pots, all I need is a capacitor and a jack.