Emergency Call Module Antenna -R263-, REMOVING AND INSTALLING, SEDAN, EXCLUDING RUSSIA, FROM MY 2019 THROUGH PRODUCT IMPROVEMENT, WITH CONNECT PLUS (IV1 THROUGH IV8): Notes
WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.
The Emergency Call Module Antenna -R263- is located in the center rear shelf.