Hmmmm..... Dunno how to make it passive, never had the need to do surgery on a bassSounds like things aren't working properly. Maybe try a new pre or wire it passive to see what's going on.
That does sound odd- my experience with Aguilar pre’s is a little goes a LONG way… is it stock? Are you the original owner? Maybe someone effed up the install…
No idea of it is stock, I am not the original owner. Maybe I need to look up a wiring diagram and see if I can make heads or tails of it compared against what's in the cavity?
, but it looks simple enough. Good luck, let us know how it goes.