Did you ever get a response to this? I spotted two that I've been looking at and am not sure which to go for.
https://www.incarmusic.co.uk/wireless-apple-carplay-android-auto-retrofit-kit-audi-a4-a5-b8.html
https://www.incarmusic.co.uk/10-25-big-screen-android-10-car-multimedia-stereo-gps-navigation-radio-player-for-audi-a4-a5-2008-2016.html
1st one seems to be the kit to use the original head unit, adding touch screen somehow?, and adding Car Play / Android Auto.
2nd one is a full new head unit which, whilst it looks good, is 3rd party and isn't exactly in keeping with the rest of the car.
Anyone had any experience with these or similar that they could recommend?
Pete
