After I had mine fitted, my friend bought a 2016 Golf, so I placed an order for one and had it fixed as well. It worked perfectly!
Reiterating the previous point, I believe there is an option to utilise OEM auto Bluetooth. I used this method, and it was successful even without the included microphone and aux line.
Having said that, the screen resolution of the 2011 ProNav BMW is substantially higher than that of the 2016 Golf.
There are a plethora of fitting procedure how-tos on YouTube.