Today we had another customer with a Audi TT 2008 model who was after CarPlay and Sat Nav. He opted for the Kenwood DNX5180DABS as it ticked all the boxes for him.
To complete the install and retain the volume controls on the steering wheel we used the Connects2 CTKAU03 which gives the correct fascia kit which allows you to install the double din unit and it provides the steering interface which retains the controls also.
For DAB signal we used the CT27UV70 aerial which is mounted to the front windscreen and is very discreet.