This application is for HDMI connection. You may project your Android smartphone’s screen onto the car multi-media system by HDMI connection and use this application for bi-directional control via touch screen of car multi-media.1. Please check your smartphone which is supported the MHL output on the following URL. http://www.mhltech.org/devices.aspx2. You have to prepare the MHL-HDMI adaptor for the smartphone.3. Please connect the Bluetooth(HID, SPP) with the car multi-media.4. Please connect the HDMI cable with the car multi media.5. Please confirm the caution message on the smartphone screen, and please select the Yes/No button.