I doubt that it is a deffective Bluetooth radio but you could check by seeing how it works with a headset. More than likely it is a software issue. I fully expect that the next release will have some fixes and add additional compatibilities. Obviously, it is difficult to test a device with every vehicle and model of Bluetooth used in each vehicle and unfortunately the Bluetooth standard has not been as solid as it needs to be. I see these devices as showing having passed the Bluetooth standards testing and yet not being compatible. Makes me wonder what kind of testing they do. Remember this device has Bluetooth 2.0 so there are definite differences.