Yup remove the boot trims and you should see 4 screws that hold the tail lights in
simply remove the nuts and pull from the outside,
then it's a case of turning the plug on the bulb you wanna replace.
Take care when putting the tail light back on though, when I installed my LED taillights I simply put the tail light housing back and tightened the nuts until they stopped turning, but the taillights didn't sight properly the way the used too. They were too far in making the bootlid stick out.
What I had to do was hold the taillight housing where I wanted it then tighten the nuts.
Could've just been my car but you'll see what I mean if it's the same as mine