Door panel insert falling off
So i have a 2011 GT base model and about a month ago i remade my trunk floor liner because the particle board (or whatever they use0 literally fell off the carpet when i removed it to vacuum it. Now the door panel inserts are coming apart. Has anyone replaced them or experienced this? Also I've searched and believe they are basically taped on? How should i go about taking them off and then putting them back on?
Also I'm guessing I remake them with thin wood and wrap it with whatever material i want and attach that with spray adhesive 77 and staples. I'm lost after that.