There has been extensive posts on this very subject, just do a search.
I have a UK 2002 Sedona, to remove panel I have to remove the ashtray, take my heart in my hands and give the facia a good tug, left hand corner of ahhtray hole, that should release the clips.
If you are talking about the black surround around the head unit, again remove head unit and give surround a da*n good tug, remember mine's a 2002 Sedona.
There are a stack load of your fellow country men and others on this forum who have removed their units and who are better able to advise you but I shouldn't think the procedure is much diffrent for year of car.
Peppers right, once you have moved the outer facia you'll need to be armed with a couple of removal pins, ( depending on your head unit ), which are widly available on Aussi E-bay for a few pence or at your local radio shack store or such like.