WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
-- Fold down the center armrest.
-- Pry out the cupholder on the rear edge using the Pry Lever :80-200
in direction of -arrows-.