i was wanting to upgrade the pickups on my ibanez gsr100 bass and i saw the seymour duncan lightnin' rods active pickups for p-bass. ive never replaced pickups before and i have a couple questions.
1.if i put in those pickups will just my 2 knobs(volume and tone) work or would i need more knobs? because on most basses with active pickups i see have 4 knobs.
2.do the pickups come with a battery holder thingy?
3.since ive never messed with the pickups before am i most likely to screw it all up?