literally everything from the back to front can come off, the pillar trim is held in place with push plugs, you'll need to get the seatbelt removed and a new mechanism sourced, that youtube clip i posted previously showing you how to change the antenna gives you an idea of how to get into the top of the roof lining, and then its pretty much yanking the tops down, carefully though as you dont want anything snapping, as with the 2l, take the 2 front pillars off first to see which side the wiring runs down. dont be alarms if it sounds like the things broken when your pulling, its jst the ribbed plugs slapping on the metal frames