you can gain access through the trunk. there are two boards held together by a small 4" wide center section. there are also two thumb knobs at the base of the panels. if its has been installed properly you will have to try to find the screws buried in the center section. if not the job is that much easier. may want to take off the trunk lid, you will be spending alot of time in there and it gives you a little more access. i broke one of my hinges because i was "less than careful"
hope this helps