Yes, it is easy to put a roof top tent on an Audi, even the smaller ones.
Both Thule and Yakima make crossbars with special towers that lock
into the doorframes.
No we haven't figured a way to put one on the TT yet.
Gallery
of AutoHome Camper Tops on Various Vehicles
Select the type of car, truck or trailer from the list below. If we don't
have a photo of your model online contact
us as we’re constantly receiving new photos from customers show
us there camper.