Hi,
I write because I have the same problem of lack of code and I also know if it is possible to go back to the code of the car radio from the data of the latter.
I bought the car used many years ago, lately I have had a problem with the battery
that has forced me to keep the car parked for several days without battery.
Result....richiesa code car radio.
Here are the details
F199 CD
9.18453-8751
GHT1400
FA646170159993
Thanks a lot