StuC may know.
I thought Matt had worked out a way.
Nope, Matt worked around it!! Lol.
I am sure someone (was it @StuC ?) said it could be done by loosening the bumper at the top to give some wiggle room?
I was looking to change my rear number plate trim for the FL one. I managed to get enough wiggle room to move the lower portion of the bumper to do the swap.
I never managed to solve the Ducktail Paradox!!! :-(
The only advice to new owners would be to not adhere it to the bumper. It has enough fixings without needing the bonding as well.
Doesn’t help current owners though.
One abstract thought has occurred though. Can you loosen the rear quarter enough to change the lamp?