What all is involved? I glanced yesterday from the trunk....is this done through the trunk or inside the car?

Just did mine this weekend. (also a 93)

Basic steps:
1) Yank out rear seat botton
2) Remove seatback side bolsters
3) Remove brake light cover
4) Remove brake light
5) Fold down rear seats
6) Remove screw covers and screws for rear deck
7) Remove rear deck
8) Have at it with the speakers

BTW... There was an excellent post descibing the steps in detail with photos. After this weekend's switch over to AF I can't find it anymore.

heres the link:
http://www.automotivehelper.com/topic338823.htm

Here's the excellent link w/ pictures...

http://rayrayonline.bravehost.com/rearspeaker1.htm