vroooom

I have accidentally snapped the rear view mirror support when adjusting it.
It is hanging with a wire support I guess.
The black box that you see came off as well, which I was able to put back in place. That's when I took this picture and then realized the rear view mirror's handle should go inside. I opened it up and put the handle back but it still needs to be fixed / hooked properly.

Does anybody know if it can be fixed without having to go to the dealer?
The latest appointment I found is next week and I have travel plans this weekend.

Thanks!