Mercedes B Class w245 2005-11 Car Stereo Double Din Fascia & Steering Wheel KitMercedes B Class 2005 2011 Car Stereo Double Din Fascia Cage Kit & Steering Wheel Interface Fitting Kit CTKMB12 This interface connects a compatible car stereo with a joystick input (blue line in or 3. 5mm jack) or wire SWC input fly lead on the back of the unit to keep the existing stalk steering wheel controls of the vehicle and the rear reverse parking sensors and also maintains the sound of other bongs chimes like seat belt, park break, low fuel,