Um, sorry that this reply is sooo late. I haven't been here for a while.

When I removed mine, I stuck my small soft digits (fingers) down the sides of the clips and used my finger-tips to pull the clips out and up a little, carefully working my around the surround, swearing occassionally as they clipped backed in and needed more coaxing. I may have even used small wedges of timber under the clips to stop them re-engaging. I recall removing the trim on the passenger side as well - but I wished that I hadn't.

Ken N