Stereo Antenna Harness Adapter for Installing a New Radio Into a Subaru, Legacy and Outback w/Out OEM Nav, 2010, 2011, 2012, 2013, 2014 Antenna adapter for installing a new Radio into a SUBARU LEGACY and Outback w/out OEM Nav 2010, 2011, 2012, 2013, 2014 CarXtc adapter plugs directly into the antenna wire beyond the radio found in a LEGACY and Outback w/out OEM Nav Plugs directly into your vehicle radio antenna harness behind the factory radio. Antenna adapter is needed for your SUBARU LEGACY and Outback w/out OEM Nav 10, 11, 12, 13, 14 If installing an FM modulator you will need this and the reverse antenna adapter