Removing wiper assembly and Aerial?

[MG's VH Wag]

Hi guys,
I need to replace the part of the wiper assembly that the wiper arm connects to but i dont know how, i have attached a few pics.

Also how do i remove the aerial as someone has snapped it off?

Any help would be greatly appreciated. This is for my brothers VK Berlina.

Cheers

[MG's VH Wag]

anyone? im pretty sure i know how to get the aerial out but im stuck on the wiper assembly.

cheers