the rear part just pops out when u push it to the front of the car and then pull down.
no damage whatsoever!
the front part is a bit tricky, so you much be gentle with your hands no to break the headliner.
what i do is push both my hands in the headliner just above the mirror GENTLY start moving them around feeling for the two clips that hold the entire part into the headliner.
once located, just push the both, be careful no to let the console hit you in the nose like mine did
