georgievbg6

Hi, I recently purchased C class W205 and looking to update my navigation maps. The car is equipped with NTG 5.5 audio 20 and the map is stored and read to SD card. In the internet I only found info and maps for COMAND NTG 5.5 where the map is coded to the car VIN. Can I use the COMAND maps in my NTG5.5 audio 20? If not where I can find any maps? Do I need to code maps to my car vin? I will appreciate any help on that topic.