Retrofit SW - Apple CarPlay for Q7 4M

[The Stiglet]

Does anyone have any experience of using Retrofit SW to recode the MMI to access CarPlay? Product here: https://retrofitsw.co.uk/product/audi-smart-phone-...

My Q7 is an earlier build date but they say it can be coded regardless of age even if Audi can only do the software update for cars built 17/08/15 onwards.

Thanks