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.
-- Slide the antenna wire -2- into the cutting device -1-.
Fig 1: Pushing Antenna Wire Into Cutting Device
Courtesy of AUDI OF AMERICA, LLC
-- Close the tool then open it again.
-- Pull the antenna wire out of the cutting device.