Don't know about the 96's but my 99 is accessed by removing 3 screws
that are located between the black trim slats.  Have to look between
them to see the screws but they are there!  Once removed the light
assembly pulls straight back.  There are a few plastic aligning posts so
becarefull to pull only towards the back.

Funny you ask, I just had the same problem with my wides 96   took out
the whole assy , and ask my self   how the he-- do you get the bulbs
out? well  the back up light and turn sig light you do carfully pry  the
lense out  careful not to tear the seal   the mid;e light you remove the
two small screws on the inside  of the back panel  them pry it out
have fun