Pull off the inside front cover, I used a flat screw driver and gently pulled it off.  Unscrewed the old mirror off - but as said above, watch that it doesn't fall into the door.  The original screws that were used did not fit into the new one.  After a VERY frustrating couple of hours and trips back and forth, the auto car guy tells me that I need self taping screws!!  Once I had those it was easy to screw on and push everything back into place.. . even a girl could do it
                 Brenda
                
 April 2012