Thanks for clarifying it!
Keyless start means start/stop button, in my understanding ?! (which my Leon mk4 has)
Do you have the part numbers for the KESSY module: door handles with antennas, antennas under the car, associated wiring ?
And do you know a place where I could find guiding for SW configuration ? So far I only have an
OBD11 with pro subscription, but if needed I would get myself a VCDS.