I've been away from the forums for a while, so I have not seen the questions building up. Unfortunatly, when I installed the siren, i did not have the time to take pictures of the process. They made the siren dificult to remove because it is a SECURITY device. if it was easily accessible, it would be useless because it could more easily be disabled.

As for the wiper removal, it is actually very easy. After unbolting the 12mm, use a set of adjustable pliers to remove the wiper. put the fixed end upward and underneeth the wiper arm, and adjust the plier to close the moveable jaw on the bolt. Give it a squeeze and it should come loose. Remember where the wiper was positioned before you remove it because there are no indicators for the correct position of the wiper.