One improtant thing I forgot to mention was to ensure that when you pull out the guides that slide in the aluminum tracks and clean them, make sure the front ones go back in the front and make sure that the small wheels in the tracks rest above the arms for the front air dam. You will see what I mean when you pull them apart. Failure to do this will prevent the sunroof from closing and possibly damage the fragile aluminum arms that lift the front air dam as the arms will force down on the wheels instead of the wheels pushing the arms down. Also, if you need to remove the front air dam it comes off with 4 phillips head screws and you will have to pry off two of the 4 "C" clips that hold the studs in the pivots on the arms. I recommend the two upper ones and gently tap them off with a small flat screwdriver. If the air dam doesn't need to come off, leave it.