Features: 1.The bluetooth module is specially designed fit for Z4/X3/X5. 2.The radio will recognize it automatically, no need to activate the auxiliary input. 3.It is used for wireless transmission of music, navigation, for YouTube and phone. 4.After selecting play on the radio, it will start playing automatically, and it will stop playing after changing. 5.Compact size, lightweight and portable, simple to carry and store. Specification: Condition: 100% Brand New_x000D_ Item Type: Bluetooth AUX Aadapter _x000D_ Material: ABS_x000D_ Color: As picture shown_x000D_ Fitment:_x000D_ Fit for 5 Serie (E39 mit SA 661-650)_x000D_ Fit for 5 Serie (E60, E61)_x000D_ Fit for 6 Serie (E63, E64)_x000D_ Fit for Z4 Serie (E85 mit SA 662)_x000D_ Fit for X3 Serie (E83 mit SA 662)_x000D_ Fit for X5 Serie (E53 mit SA 661-650)_x000D_ _x000D_ Fit for radio model :_x000D_ SA 650 (Radio Business mit CD-Laufwerk)_x000D_ SA 661 (Radio Business mit CD-Laufwerk)_x000D_ SA 662 (Radio Business) _x000D_ _x000D_ Installation:_x000D_ Minimal installation work._x000D_ The adapter cannot be connected to the back of the radio._x000D_ No additional power wiring is required._x000D_ The included Micro can be placed optimally with a 2.5m cable._x000D_ The radio will automatically recognize it as the CD changer, no need to activate the auxiliary input.