The view of the driver's side view mirror after the mirror glass was removed.
REMOVAL of the mirror glass:
First cut a 2" wide by 19" long piece of thin cardboard; Bristol board works well. This is then placed between the mirror glass and mirror housing to protect the finish of the latter.
Using the mirror control, center the mirror on the left-right plane and then tilt the mirror upwards so that the bottom edge of the mirror sticks out as far as possible.
Have plenty of light available. Next you will notice a black plastic ring with 4 notches at the bottom of the mirror on the back side (see last photo). Follow the instructions in the caption of the last photo for removal and installation of the mirror glass.
The two brown wires connect to the heating element in the mirror. They are not polarized since they don't need to be, so it is irrelevant how they are connected.