No requires the Third Party app installed on Duduauto head unit, it can integrated with duduauto touch screen radio directly, you can set the widget on the main screen to check the details anytime, it is also can compatible with the third party apps to use This mini Bluetooth OBD II reader equipped with Bluetooth 5.1 version, 9 protocos(v1.5) which can respond faster you can view vehicle speed,engine RPM,Oil temperature,water temperature and voltage data directly on the head unit main menu without click apps Compatible with most cars year from 1996, Please noted that some cars data can not show completely due to protocol difference Easy to install and connect, find your car's original OBD port and plug in the OBD 2 Reader, pair it with Android radio head unit via Bluetooth to use it