No problems at all. Just make sure you put all the screws back. Should be as good as new.
First, as you said take out the screw in the handle cup and remove that.
Then take out the large gold screw inside there holding the panel in place.
Then, there are two screws under the two round pop off cover caps near the front of the panel.
One screw in the hole in the armrest
4 screws along the bottom edge
3 small round clips on the outside edge
then lift up and remove
EDIT: Before removing, prise up the elec window switch panel from the back edge, and the red light, and disconnect them.
there are loads of guides on celica-club.co.uk if you search on speakers.
This post has been edited by manphibian: Jun 4, 2007 - 12:38 PM