undo the snaps (pry the center with a knife or small flat head screwdriver) on the black liner at the bottom opening of the trunk, then remove enough snaps on the molded charcoal carpet liner to get to the three machine bolts... take these off, and don't lose any
pull the light off, then unscrew (1/4 turn) all of the bulb holders
do the same with the new lights in reverse
the placement of the bulbs will be a little different, but it will only work one way, so no big deal