chinese oem look multimedia units

[fullban]

iv been looking at this 1 as its the cheepest[:d]

http://www.szinex.com.cn/product/1539115273-212491869/shenzhen_car_dvd_gps_navigation_system_For_Audi_A4 _AL_9102_factory.html (edited changed mind)

are they worth it ?
I only have the concert I think its bog standard! (cant even connect aux)

I mainly only after the Bluetooth phone intergration, navigation and being able to play music off sdcard anything else is a bonus

thanks appreciate your opinions