BIG UPDATE:
No stupid and expensive dongle is required to have wireless and wired android auto on the head unit.
All you need is an app called Headunit Reloaded from the play store, which costs £4.99 and not £50-70 like the stupid dongle.
All you do to make it work is install the app, pair your phone to head unit with blueooth and wifi and that's it, it just works!
If anyone else has bought a dongle I would send it right back, its just another unneeded complication.
App link:
https://play.google.com/store/apps/d...hl=en_GB&gl=US
Screenshot of it in action:
