01Echo Replaced cabin air filter with no problem. Same area is a cage with black filter inside with mold on it. Can't figure out how to open cage to replace this filter.

SOURCE: cabin Air Filter

Open the glove box

Remove all of the contents in the glove box

On the right side, dis-engage the rod going to the split plastic pin on the glove box door

Squeeze both other sides of the glove box to defeat the stops that keeps the glove box from falling open

Observe the box in the area vacated by letting the glove box drop down, this is the heater box

Locate a rectangular cover (approx 7 " x 2"), it is located on the face of the box; facing you.

Pull this cover out towards you, the cabin air filter is located in the tray that is connected to this rectangular cover.

This should help you replace it.

SOURCE: How to change air conditioning filter chrysler crossfire 2005

I found a chrysler blog. Pull back carpet on passenger foot well, remove white styrofoam computer protector. Remove cardboard cover (remove two screws) from bottom of glove box. On Left side see a slot with plastic cover and two sliding latches. Open and remove and replace filter. Follow reverse to finish up. It is tight fit and hard to get to for normal sized man.

SOURCE: 2002 Toyota Sienna cabin air filter??

Unfortunately, no.
Toyota began installing the cabin air filters in the Sienna product starting in 2003.

SOURCE: Engine Air Filter

The engine air filter is located in the box behind the battery. This box should have 4 metal clips that pop off and you and pick up the top of the box and underneath is the filter.

SOURCE: how to replace the cabin air filter

hi
remove the glove box by pulling the sides in and opening it passed the stops. there's a 2" x 8"(approximate) box behind the glove box open the cover and you'll find the cabin air filter
or chek this site for your required answer,
http://www.msprotege.com/forum/showthread.php?t=111059
hope u will b helpfull.
thankyou.