Does anyone know the software version or update to activate Voice commands on Navigation. I live in Abu Dhabi and have a GCC spec Denali, therefore this feature is not available, I guess it's because no Arabic interface is available yet. But I am English and I speak English so I would like to use this feature. The voice commands on the phone and audio work fine. I've repeatedly asked my dealership about this mod/upgrade but all he says that it is coming.