Rexka 25pcs Door Trim Panel Clip Fastener 909130228 for Subaru Ascent, BRZ, Crosstrek, Forester, Impreza, Legacy, Outback

Assuming thwacking it harder to reseat the clips is failing, the clips are probably broken. No stock style insulator: https://www.amazon.com/Rexka-Interior-909130105-Forester-Crosstrek/dp/B0DYY9RSSZ Stock style insulator: https://www.amazon.com/Rexka-Fastener-909130228-Crosstrek-Forester/dp/B082RV46XV In my '24 Crosstrek there's 2 hidden screws, 1 obvious one in the pull handle area and 1 hidden real good behind a panel in the door-open handle. Then you pry/pop the panel off from the bottom and slide upward to remove. I've taken door panels off a bunch of vehicles, really the only thing that changes is where the 1-3 hidden screws are. If you want to get real adventurous you can get sound deadening panels to put on while the doors are apart. I don't know if the foam stuff needs a helper install tool like Kilmat does but if you get any of the "aluminum backed buytal" stuff you need a couple widths of the metal roller tools to get it to stick properly.