Telematics Emergency Battery -A16-, REMOVING AND INSTALLING, WITH CONNECT PLUS, (IV0 THROUGH IV8), THROUGH MY 2020: Installing
WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Install in reverse order of removal.