Put in my AH3's VIN and got an update for it:
Software update (MN-1.23.4, TN-1.23.2)
> Telephone: Improved Bluetooth connection stability. Improved transfer of contact data of the rear-seat telephone. Improved call lists in China.
> Multimedia: Improved performance with video display lists with iPOD devices. Improved music playback and stability with iPOD devices and large USB devices.
The software update improves the compatibil- ity of the following devices:
> All USB devices
> Apple: iPod touch, iPhone 3GS, 4, 4S, 5 (iOS 6)
> Apple: iPhone
> Nokia: All devices (use in China)
> Samsung: All devices
> Rear-seat telephone