PAC SWI-RC-1 Universal Steering Wheel Control Interface for Aftermarket radio Features: Retains steering wheel control functions when replacing the factory radio Universal design that works with most car stereos and factory controls Retains programming even if the vehicle's battery is disconnected Quick and easy pre-programmed button function by DIP switch selection Works on Analog (resistive) and Data SWC systems For vehicles with CAN-Bus, GMLAN, CLASS II, LIN-Bus, I-BUS, or analog SWC Radio must have a wired steering wheel remote input Buttons can be re assigned to personal needs Customizable button functions (short press/long press/button reassignment) Easy installation with 3-5 wire connection Provides 2 amp, 12volt accessory output (CAN-Bus, LAN and Class II applications) Instruction Manual - PAC SWI-RC-1 Manual Compatible with the following brands: Alpine Clarion Eclipse Pioneer Kenwood JVC Sony Dual Jensen Valor Visteon and more!