What changes
Module 56 (radio): adaptation channel 02 = 1.
Details
Audi A3 8P (2003–2013). For Concert II+ and Symphony II+ radios. After writing, turn it on: SETUP → Speed → On. The channel comes from public 8P adaptation descriptions and has not been verified by writing to a car. Odyx reads the current channel value first and shows the changes: on other module versions the channel number may mean something else — compare the “before” value with what you expect. You need an ELM327 adapter that supports TP2.0. Undo — from the write history.