Ever since I had the sunroof installed, I could never tap on it to make it come on manually. Basically, I can't push up on it like I used to anymore. Did the shop lose a spacer or spring that enables the cover to be tapped? I took the cover off and could manually push the 2 little buttons on/off but with the cover back on, it's too snugged and no free-play to push up on it. What part am I missing from this dome light assembly?