the corner is a seperate unit from the led panel.

Its just a matter of simple metric bolts for removing either of them, and unplugging the electrical harness.

 

Super-easy job to do. Once you open the trunk, you'll see the obvious points of fastening.
The only tip I'd give is that there IS some play in the holes the screws mount through, for adjustment. Be sure that all your panels line up before tightening everything up.