How do you remove rear speakers in a 93 legacy wagon does the cover for the speaker strut tower just pop off or do you remove all the trim in the back?

from shop manual:

remove luggage cover and holder assembly

remove speaker cover retainer nut and and screws securing the cover in place over the speaker assembly

loosen and remove the speaker retainer screws securing the speaker in place, lift the speaker out enough to access the wire harness at the rear of the assembly

disconnect the speaker harness

remove the speaker

installation is the reverse of removal