You have to take the whole back panel off. start from the tailgate there are parts to unscrew and then most of it comes off by pulling it off. there are plastic push pins in the plastic interior that needs to be removed and the speakers are under that
Try to use Toyota speaker adapter plugs so you don't need to cut wires and mess the electric system up. You can get them from Ebay or Amazon.4"
If the speakers are in the door panel then you must remove the door panel to install new speakers. You can only bypass removing the door panel if the speakers are located elsewhere.
Speakers on a 1994 4Runner are relatively small. The front uses 4 inch diameter units while the rear uses 5 and 1/4 inch units.
17.2 gallons
yes
R134
The cabin air filter on a 1994 Toyota 4Runner is located behind the glove compartment. It filters are which comes from the outside and air which is recirculated inside the cabin.
most usually there was a dealer kit that replaces the factory rear side storage box doors to install rear speakers , although only in xtra-cab pickups.
how to install a blower motor for a 1994 Toyota pickup
how to install a blower motor for a 1994 Toyota pickup
5 qts
5 quarts