To remove the trim you need to remove the screws that are shown in the diagram attached. More then likely they are just plastic screws so to pop them out you need a trim tool set. I attached a picture of one that are available at any parts store.
Run through this material and let us know what issues you run into and we can go from there.
Images (Click to make bigger)
Thursday, December 3rd, 2020 AT 5:12 PM