So last night I walked up to my 99 TJ, the interior light was on. Strange I thought, so I opened up the door and played with the push switch, nothing happened. I recruited a friend and played with both driver and passenger push switches, nothing happened, light still on both doors closed. I then removed fuse number four from behind the glove box, again light still on. So in the end I removed the bulb.
I thought this was all very strange, will pull the wiring apart soon when I build my soundbar and move the light from the foot well up to the roof. Maybe will rind and fix the problem.