PAC Pacific Accessory SWI-PS Interface Adapter

This allows you to retain the use of their steering wheel or rear seat radio controls when replacing the factory head unit. Works with Pioneer and Sony radios with wired remote inputs. The SWI-PS also retains the use of heater control buttons on GM vehicles. The SWI-PS is so universal that it works in over 95% of the vehicles made from 1986 to current. You can assign the buttons on the steering wheel to any of the 9 specific Pioneer functions: Volume Up, Volume Down, Mute, Track Up, Track Down, Source, Preset Up, Preset Down and Band.