Mine are stock panels, but with the mounts removed from inside the boxsides, then the insert pushed outwards. Its a little tricky to get the bolts started, but they dont need removed to get the hard top on and off (not that its been on since 1996 anyways).
I'm thinking about redo'ing them someday, making them flush mount with a SS piano style hinge mounted low so they can tip outwards to get to the hard top bolts. Also mount some more speakers/subs in the back corners and retain access to those.
Erik