I had the exact same thing except the dealership did it. Anyway, it's really easy to remove, I just used my fingers to push/pry it out (from the vertical part), then you gotta use a screwdriver to pry the speaker off the grill part and I think unscrew some screws.
Btw, I think that it's a really stupid design to put something relatively fragile in a 'high traffic' area.
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