I have a 2016 mazda 3 sedan. I am trying to take off the trim that is above the trunk(where the third brake light is) so that I can put sound deadener in it. I can't figure out how to take it off I have taken off all of the fasteners that I could find. I even found 2 that were behind another piece of trim. So what else do i need to do to take it off?

 

Remove in order,

(1) Rear scuff plate
(2) Rear seat cushion
(3) Rear seat back
(4) Tire house trim
(5) C-pillar trim
(6) High-mount brake light
(7) 3 Fasteners ( forward facing edge)

Lift upwards, & outwards from rear edge to pop retainer clips.

 

Where did you find a diagram like that and pleeeease tell me there are more!

 

Only found in the Factory Workshop Manual.