Vehicle Audio Steering wheel interface allowing use of original buttons with a new aftermarket head-unit.CAN bus and ISO connectors behind the radio.Includes Ignition : speed pulse: reverse: handbrake and illumination signals. This model is universal and can be used with Alpine: Blaupunkt: Clarion: Pioneer: JVC: Kenwood: Sony or Zenec Head-units.It is supplied complete with instructions and the patch lead for the new head-unit . Vehicle Compatibility Volkswagen Crafter (2006 to 2016) with single DIN radio from factory 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.