Panel Removal (for reversing camera installation): Help!

[Zuman]

Does anyone know how to remove the panel above the woofer in the attached image ('06 DB9 Volante)? This time I DID check the workshop manual and it wasn't helpful, except to show that the top of the panel has a 90-degree angle coming off it. I've removed the screws at the bottom and the lower part of the panel is loose but the top doesn't feel like it's just firtree fasteners holding it.
I'm trying to find a wiring route from the nav player under the left side rear seat to the boot or bumper so I can install a camera, so if you can offer an alternative approach (not a wireless camera, though!), I'd certainly be interested.
Thanks!

[Phuketpaul]

Never removed this panel but....

Both my camera cables and the fuse 22 switch (removed now) both route through the top right of the rear seat (looking at the seat) roughly following the large power lead that routes to the boot fusebox

[8Tech]

Have you removed the 2 screws from the rear of the roll over protection closure panel?

[Zuman]

Thanks, Paul and 8Tech. I did end up taking an alternative approach...kind of like Paul suggested, following the large power cable, then through the convertible top storage compartment and into the boot.
I DO appreciate your input!