TIPS NEEDED for REAR LIGHT REMOVAL

hi guys, changing over the rice lights that came on my car, done the inside lights on the boot hatch, but does anyone have any tips on reaching the 4 nuts that hold the outside lights on?
i cant seem to reach them, do i need to take all the trim out???
any help is great
i cant seem to reach them, do i need to take all the trim out???

any help is great