you have to remove the door panel
I have a 2004 Acura TSX - I was having this same problem - it fixed itself and apparently the "fix" in my situation was to have a passenger lock and unlock the doors from the passenger side.
Take door panel off then it's as easy as 1-2-3
6x8 door speakers
The door speakers are 5.25 inches but you have to purchase an insert in order to replace the door speakers.
4x6 are the size of the door speakers on 2004 GMC Sierra. Standard cab
6x8 door speakers
Remove door panels.. Unscrew old speakers..Screw in new speakers..replace door panels...ready 2 GO..
The 2000 Acura Integra dashboard speakers measure 3.5 inches in diameter. The front door speakers measure 5.5 inches in diameter. The rear speakers measure 7.5 inches in diameter.
Remove the door panels and replace the speakers. They sit in baskets and are simple to replace. We have instructions at our enthusiasts forum. www.trailvoy.com
6x8
Front Door Speakers are 6-1/2"
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.