@MacSlavko
The error of the BTA is due to the fact that the NAC check the USB connection to it, which you don't have with your original BTA. Either change the BTA or disable it in the soft
You are asked your VIN if you buy it new, because they have to make the change inside their database (serial number of the device), but it will be probably not coded (online Diagbox needed for this) - not sure they will allow you to buy it new anyway
The microphone error can appear without any issues by the way, because the NAC check for a specific resistance on the line which is not always matched (due to the adapter / BTA) but doesn't mean the microphone is not working
Voice control should be working if handsfree is working, strange !
NAC donor VIN, not BTA, but yes, that's the point of having a connected BTA : no Internet sharing to get traffic informations
The error of the BTA is due to the fact that the NAC check the USB connection to it, which you don't have with your original BTA. Either change the BTA or disable it in the soft
So if I buy the new BTA2.0 box (& the cable) from dealership it comes clean and uncoded?
You are asked your VIN if you buy it new, because they have to make the change inside their database (serial number of the device), but it will be probably not coded (online Diagbox needed for this) - not sure they will allow you to buy it new anyway
The microphone error can appear without any issues by the way, because the NAC check for a specific resistance on the line which is not always matched (due to the adapter / BTA) but doesn't mean the microphone is not working
Voice control should be working if handsfree is working, strange !
I suppose with a working BTA2.0 I could pay for another 3 years Connected Services subscription (with the donor-car VIN) in which case I wouldn't have to share the Internet connection from my iPhone (if the BTA2.0 would be working normally)?
NAC donor VIN, not BTA, but yes, that's the point of having a connected BTA : no Internet sharing to get traffic informations