I heard of these mysterious plastic clips you supposedly have to dremel off to get the insert out. I also noticed on my car there are no clips holding the inserts on, just glue. There is a divot underneath the rear ones, but only glue was holding mine on. Maybe if you send me a few pictures of the clips in question I can help, cause my car didn't have them so I didn't need to solve around that. And I have an '03 SVT
EDIT: Unless you mean clips holding the entire panel on, then if you have a hatchback just pull all the parts out of the trunk first so you can reach your hand behind the panel and pop them out from the inside. If they pop off you can just glue them back on, I had to do that for 4 of mine because they were super stubborn and I got frustrated.