thanks for the help so far, I have pulled the panel out but it is getting held by the seat belt, which I can not remove. It needs some special key I gyes that looks like a sun woth 6 small corners......

do I have to take out the seat belts or there is another way???

I alkso tried to get out the psacer that holds the speaker but it seems to be welded to the frame on the left. What a bummer.. Please help if you can suggest something