How do i change out the dash speakers on a 1992 wrangler?

There are 4 studs on each side that the speaker mounts to. On these studs there are single thread nuts that have to be removed. On the passenger side all you have to do is get your hand up behind the dash and feel around the speaker for them. They come off easily as long as you don't inadvertently mix up the righty tighty/lefty loosy rule.
The driver side is a bit more of a hassle. You have to remove the e-brake mounting bracket( 2 nuts on the engine side of the firewall and 1 bolt holding it to the instrument panel) and somehow get your hand past a big bundle of wiring to reach the speaker mounting studs. I found it easier to remove the dash mounting bolts on the drivers side so I could pull the dash back a bit and get more room.
I would also recommend replacing the speakers with water resistant marine speakers and either use a spacer between the speaker and dash or cut out the existing grill so the tweeter has clearance.