Sonos Play 3 - Midrange Speaker Adapter for Replacement with a Vistatron FRS8

This is an Adapter to replace a defective Midranger speaker on an Sonos Play 3 Speaker.
It is quite specific but i thought why not share.

I have adjusted this Adapter so it fits the following Speaker:
"Visaton Hifi Full-Range Speaker 8 cm (3.3") 4 Ohm"

You will also need some self tapping screws or universal ones.
I was using the follwing screws:
"DIN7981 3,5 x 9,5"

The dissassembly is quite easy but you can look it up on ifixit. (I dont know if I am allowed to post links)

There