It looks like Stealth Hitches website is having issues with the instructions for the Item # 391AUDA4A5S52T
hitch. I went directly to them to get a new link that I have attached below.
The Stealth Hitches Hidden Trailer Hitch Receiver w/ Towing Kit item # 391AUDA4A5S52T has been confirmed to fit the 2016 Audi S5. view full answer...