This is a plug and play kit.

Start/Stop Engine Buttons - Drive Select

No coding required.

R8 buttons for Audi A3/S3/RS3 8V, A4/S4/RS4 - A5/S5/RS5 - Q5/SQ5 B9&B9.5, A6/S6/RS - A7/S7/RS7 C8, Q7/SQ7 4M, Q8/SQ8/RSQ8, TT/TTS/TTRS MK3.