You have to do it from the inside of the trunk.
from the trunk
Remove the cover in the rear window.
The 1997 Pontiac Grand Prix rear deck speaker covers are held in place by four retaining screws. Remove the retaining screws to remove the covers.
With a screwdriver
Remove rear deck lid, use a 9/32 socket to remove screws, remove wires, reinstall them onto new speaker, reinstall the screws and the rear deck lid...
To remove the rear deck speakers in a 2008 Chevy Aveo, start by removing the rear seat and any necessary trim panels to access the speaker area. Disconnect the speaker wires carefully, then unscrew the speaker mounting screws. Once the screws are removed, gently lift out the speakers from the rear deck. Be cautious not to damage any surrounding components during the process.
REAR SPEAKER - JR41 Disconnect and isolate the battery negative cable. Fold down the rear seat backs. Remove C-pillar trim. Remove lower quarter trim behind rear seat backs. Remove fasteners from rear shelf trim. Pull out trim to access speaker. Remove speaker screws. Disconnect wire harness connector. Remove speaker (REAR SPEAKER-JR41). REAR SPEAKER - JR27 Disconnect and isolate the battery negative cable. Using a trim stick, pry the speaker grill from the trim panel. Remove speaker mounting screws (REAR SPEAKER - JR27). Remove speaker from trim panel. Disconnect wire harness connector from speaker.
they can, if you modify the rear deck. here's how; carefully remove the rear deck. then cut out an opening where the old speaker was underneath. next put the rear deck back in and put your 6x9 ontop of the rear deck. you should be able to screw your speakers into the rear deck
To remove the rear deck speaker cover on a 1985 Buick Riviera, first, carefully pry off any plastic trim or clips surrounding the speaker cover using a flathead screwdriver or a trim removal tool. Next, locate and remove the screws securing the speaker cover to the rear deck. Once the screws are removed, gently lift the cover away from the deck, being cautious not to damage any wiring or clips. If necessary, consult the vehicle's service manual for specific details related to your model.
To remove the rear speakers from a 2001 Lexus IS 300, first, ensure the vehicle is turned off and disconnect the battery. Then, carefully pry off the speaker grille using a flat tool to avoid damage. Remove the screws securing the speaker to the rear deck, unplug the speaker connector, and lift the speaker out. Repeat the process for the other speaker if needed.
remove the speaker covers from fear deck. remove the four screws that hold the speakers in the rear deck. four screws hold each speaker in place. unplug the wires from the connecters. if aftermarket speakers cut after plug and splice new speaker wires into existing factory wires. reverse the procedure to install new speakers.
remove the rear seat (bottom) pops right out from front. remove the rear seat (back) two nuts on the floor. the rear speaker deck slides out.