PAC AUXON-SONY Sony Auxiliary RCA Audio Input Cable Adaptor Add an input to your compatible Sony stereo Plug and play installation Audio input selected by radio button Add an input to your compatible Sony stereo Plug and play installation Audio input selected by radio button Universal design allows connection to most portable devices Plugs directly into the cd changer port on a Sony unlink equipped head unit to enables the use of the "aux in" RCA source on the radio