Replaced the front speaker in an '96. Involves taking out the seats as the door sill trim piece has to come out. Parking brake cover as well. Once the seats are out and then the door sill out, speaker/amp housing comes out with four screws.
Oh and taking seats out is quite easy. Unhook the bottom cushion to get to the four seat rail floor bolts...be sure to disconnect the power seat connectors and the air line if you have sport seats. Just be sure to take note on the driver's seat as to which of the two connectors go where. They are the same connector and if you switch them, the passenger's seat will no longer move. Does not hurt anything...just involves taking the driver's cushion out (again) to swap connectors.
Be advised if you buy a replacement amp, do not get the ones that have the gain adjustment control. These are an aftermarket brand and do not have the same output power as the originals...and you can hear the difference quite easily.
LannyL81