So I've got a set of passive Lollar PJ pickups that I'm really itching to put into something. I came across an Ibanez SR800 that has the PJ pickup config but the pickups are active. Now, I'm not very knowledgeable on bass guitar wiring or really electronics in general. I installed some passive humbuckers into a guitar once and I've taken the backplate off of all of my basses and have poked around, trying to see how everything works. I kind of get it, and I'm decent at soldering. So, in theory, would it be possible to just throw some passive pickups in this bass and call it good? Should I buy an active preamp so all the knobs get to keep their jobs? Could I just customize the electronics totally to my own tastes? Could I strip the pickups and the electronics out of the SR800 and put my own preamp in along with the passive pickups and wire it out the way I want it? Would it be possible to turn one of the knobs into an active/passive switch? I'd really appreciate ANY advice here.