A heat gun and a plastic putty knife will help. Go slow and work the edge of the glass out to the point that you can get the putty knife under it, try pry gently. There is a black sticky adhesive of some sort under it, but the heat gun will take care of that and just make it "gooey". I think I still have a mirror housing if you need one. PM me or email me and I'll get it to you - just pay for the shipping.