All the door speakers are 4' in size for replacement.
To replace the front speakers in a Toyota Sienna the door panels must first be removed. With the door panels removed the speakers will be easily accessible and the mounting screws can be loosen. Unplug the speakers and remove them. Install the new speakers.
Both the front and rear are 4" door speakers, although it is not unheard of to fit 5.25" speakers in the front, and 6" in the back. Hope this helps!
Take the door pannels off of the interior of door, unscrew stock speakers, cut speaker wire, attach new speakers to the wires
The door panel speakers in a 2005 Toyota Corolla are 6.5 inches. These speakers have a mounting depth of 3 inches.
6" speakers in a 2000 Toyota camery
You have to remove the door panels. You can use 6.5" speakers with a little bit of adaptation. You can search for door panel removal. There are 4 screws, a couple of clips and clips around the edge of the door panel.
Answer96 Avalon XLS with 6speaker system ,4 4" in the doors and 2 1" tweeters frontTry 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.
if they're the same as in the 1996 Avalon, then they're probably 4-inch door-mounted speakers. You can check Crutchfield.com for sizes and brands that will fit.
Here are directions for a camary. It is basically the same for the avalon.http://autorepair.about.com/library/weekly/aa092504b.htm
The door speakers are 5.25 inches but you have to purchase an insert in order to replace the door speakers.
The diameter of rear door speakers for a Toyota Auris are 4 inches. However, they can be replaced with speakers that are slightly larger.