New Windscreen problem

[Unrealsimon]

Hi, the new windscreen on my 2014 custom Trend has a different mirror base. I have new a plastic surround ordered but can't see how the mirror will attach.
My van has the rain sensor and lane keep and I see where they go but the mirror is a mystery!
Unfortunately, this is how the van came to me with the mirror in the glove box!
Attached is an image of how it looked before the new screen, the new screen base plate and the mirror.
Any suggestions on how this may go together?!

Sorry for so many questions, new van to me with a few issues to say the least!

Ta
Si