I've just ordered this from AMAZON.co.uk

The CARPLAY module connects to the Audi Music Interface socket , via AMI lead with RCA connector. (Any Audi with AMI and MMI screen)

the only differance between this and the OEM version of CARPLAY is the "MMI" looking app is not there, (I think the "MMI looking app just returns you to the Audi MMI screen anyway - can someone confirm this ?

you don't navigate through the CARPLAY with the large MMI rotary controller , choosing the differant apps on CARPLAY is achieved by the rotary controller that's included , in the pic on Amazon they show the controller attached to the steering wheel , for my personally I'm not going to attach it to the steering wheel.

Once you have chosen the app on CARPLAY , most functions can be achieved by SIRI


General External Carplay box Siri Voice steering-wheel: Amazon.co.uk: Electronics

i was thinking about getting my MMI plus maps updated anyway , no need to now will use maps from my phone etc

when it's arrived will tack pics etc