Stereo Antenna Harness Adapter for Installing a New Radio Into a Chevrolet, Aveo, 2009, 2010, 2011 Antenna adapter for installing a new Radio into a CHEVROLET AVEO 2009, 2010, 2011 CarXtc antenna adapter plugs directly into the factory radio pulled from a AVEO. Has a male Motorola plug on one end and OEM jack on the other - Use with New Aftermarket Radio Installs - Keeps FM / AM Factory Antenna Useable. Antenna adapter is needed for your CHEVROLET AVEO 09, 10, 11 If installing an FM modulator you will need this and the standard aftermarket antenna adapter