INSERT the cradle in the CD slot and once it is properly installed this cradle will stay firmly in the CD slot.This is a CD mounted phone holder and it may cover the face of the stereo when it's installed. STURDY CD slot phone holder with three side grips design to hold the cell phone tightly. It locates the phone in a much more convenient place to see/touch than the dashboard mounted solutions. YOU set your phone in and squeeze the sides in and they stay put. There's a little button on the side that you press to release the sides and your phone pops out. ADJUSTABLE for angle of view. The phone holder revolves 360 degrees and pivots to various angles. GENERALLY this product could hold your phone in a case or without a case. If the product could not hold your phone well please remove the case (This mount may not very suitable for wide phones with cover case).