tereo ANTENNA Harness Chevy HHR 2006-11 AFTERMARKET STEREO/RADIO ANTENNA ADAPTOR - PLUGS INTO AFTERMARKET STEREOS AND CONNECTS INTO FACTORY ANTENNA ** Simply plugs into New Aftermarket Antenna and then into original Antenna wire ** Allows connection an aftermarket receiver to the factory antenna cable. ** HHR 06 07 08 09 10 11 2006 2007 2008 2009 2010 2011 ** No Cutting or Wiring Needed - Plug N Play connection (no experience necessary) ** Use with New Aftermarket Radio Installs - Keeps FM / AM Factory Antenna Useable.