GROM VOL01B3 for Select Volvo Cars Bluetooth Adapter; Aux and HD Radio Capable Plug and play installation. Control your media from car stereo or steering wheel buttons. Bluetooth Streaming and Handsfree Calls. In hands free mode: accept & reject phone calls, voice dial. Bluetooth Audio streams directly from your phone to the stereo. GROM-BT3 module has two extension ports that can be used for aux-in, and HD Radio integration with optional cables that are sold separately. Integrated Bluetooth Car Interface adds Hands Free Calling and Wireless Audio to the original factory stereo of many cars. Attension: Please see compatible cars in Product Description.