Yes sir there is a way to activate the buzzer, it only works for the Smart entry system (by using the door handles). It's probably switched off through the meter settings in your vezel. Simply use the Google translate camera function in your cars meter, from there you want to find "Door settings/setup" and in there you will find the buzzer setting which will be switched off currently, set it to ON and your call will beep with smart entry now. Let me know if it works!