PAC C2R-AUDI Radio Replacement Interface with Navigation Outputs for Select 2005-Up Audi Automobiles Built in SWI-CAN Data controlled RAP accessory output wire Data controlled parking brake wire Data controlled reverse trigger 2005-up Audi Radio Replacement Interface Built-In SWI-CAN to retain steering wheel controls Keeps Data-Bus intact for vehicle services and emissions testing Retains factory-installed BOSE or Symphone audio system