Complete fitting kit to install a single DIN head unit and retain the original steering wheel controls. This kit includes: Single DIN Matt Black Fascia Fakra to DIN Antenna adapter Steering wheel control interface Universal patch lead Parking sensor and warning chime retention interface and speaker. The CANbus steering control interface is used to retain the use of the original audio controls on the steering wheel: this includes the telephone button.This interface also generates a CAN ignition to the new head unit and provides speed pulse: reverse gear and handbrake outputs. PLEASE NOTE: Some cars with start/stop technology may require an additional voltage stabiliser to prevent the radio turning off when the engine restarts. Vehicle Compatibility: BMW - 1 series (E81/E82/E87/E88) 2004 - 2010 BMW - 3 series (E90/E91/E92/E93) 2006 - 2011 BMW - Z4 (E89) 2009 - 2016 Vehicle Models: The years stated refer to the model's years of manufacture: please check the item description for information about any changes there may be within these productions years.