Anyone know where the intake vent is for your heat/ac is on a 92 xj? And do they have cabin filters? Im asking because my 92 has smelly heat and im looking to spray some lysol in the vent and or change the cabin filter but am unsure of the location.

 

No filter. You may have a clogged drain hose.
It's located on the passenger side fire wall near the starter.
If it's clogged then that would explain your smelly heat.
Auto parts stores also sell stuff to spray in the vents.