If you follow the link, it shows that you don't need to remove the headliner. You can access it from the sunglass holder area. But I'm not sure about just pulling it down. If you do want to remove the entire headliner, it's not hard but it takes forever. You have to remove the A, B, and C pillars as well as most of the panels in the hatch. They all sort of interlock back there, so you can't access the headliner without taking them out.