Can you please tell me how to erase it?
I think 5F can be activated only on one car.so I as wrote: 03623 - Wrong unlock code is related for Activation, I think your 5F was activated for another VIN
In Russia, until such dealer has not yet doschel. So for me it is probably from the realm of fantasy.Everything is possible but the rules that Audi preview in these cases are always the same: the car must be untouched....in others words no modification have to be done and there you have replaced the 5F and added the Bose. If the Work has been done by an official Audi Service using new parts under warranty I cannot believe they don't ask a code to regularize the new situation.