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In order to remove the sunvisor you have to take a small screwdriver and pop the plastic cover off of the visor pivot point that is holding the visor into the roof and headliner assembly. Once you pop that cover off it will expose two screws. Remove the two screws then give a little bit of a tug and wiggle and the visor will pop down. There's a possibility it could be the new style clip but I don't believe so if that is the case when you slowly pop that cover down it will disengage a metal spring clip and then it's just a matter of disengaging spring clip and then pulling the visor assembly down. You will know as soon as you try and pop that cover off of that pivot point on the end of the visor arm.
Here is an illustration