John, I am connecting the brake controller and re read some of the Audi forum on towing. One Q7 (2016) owner with air suspension mentions that when he connects a trailer the backup camera also give a hook-up view that assists him in backing the ball to correct location under the hitch receiver. This is in addition to the air suspension system auto leveling the car when connecting a trailer.

I do not know if this back up camera feature comes on with standard suspension or only with the air suspension option.