I have the some concerns or questions, if it will ever will be resolved. The sad part it was included in my sale price and the dealership is suppose to upgrade my system with no cost to me, when available. I am just waiting for the dealership to get the part number. But it makes me wonder if my radio will inter change with the steering wheel buttons. I have the 4.3S radio and it doesn't have Bluetooth. I can't seem to find anyone that really knows how to fix the issues. The more I research having trouble finding something to filter though my speakers system. I purchased a separate Garmin GPS system with hands free Bluetooth with voice commands, but it would sound louder and clearer if could go though the audio system, instead of the GPS itself.