Hi there, check the pictures in step 10 to see what the ear cup looks like. I don’t have a picture of the panel but its basically the same as the front with small spikes that get inserted in the holes of the step 10 picture and glued together.
If you have access to a soldering iron you could try melting the glue itself, although I haven’t tried that myself. If you try and it works do lmk please. @xenoesteban