Do you know that Eonon has released GA5166F Android Car DVD Player with 4.4.4 Kitkat OS QUAD CORE 7 Inch Capacitive Touch Screen Car DVD GPS For E39/E53? What’s more, we also have released Android Car Stereo 4.4.4 Kitkat OS QUAD CORE 7 Inch Capacitive Touch Screen Car DVD GPS For Chevrolet and GMC. They are the best the Car DVD for you to choose.

So today, we would like share with you guys some FAQ for Android Car DVD Player. How can populate your address book contacts to Android car audio usually? A: For the download address book contacts from the phone to the radio: First, you need to have your phone with Android head unit, and then click the Contacts icon and search for contacts like the image below: Make sure you use the built-in phone contacts, otherwise you cannot search. Also, if your smartphone is running Android OS 5.0 or above, please let your phone all the comments when stereo search for contacts.

2. How do I change the default music application? A: Because the Car DVD Players, Bluetooth is based on the Android 4.4 system, you can download other music player applications such as Spotify in the built-in game stores (requires Wifi or other Internet sources) and install it on the head unit.

3. In case, additional microphones, how can I increase the volume? I did not find anything that might be adjusted in the car audio player, microphone volume. A: Please use additional microphone and increase the volume of the car radio.

4. I'm did not get torque recognize, Bluetooth is turned on. Therefore, I cannot connect to a Bluetooth-board diagnostics. I can connect to it from my phone, but no units from the front of the pumpkin. Is there anything I can do to get this to work? A: For pairing OBDII, you need to know your car's agreement, and select the correct protocol in the "torque." The following is the entire instruction: 1) Enter the "Bluetooth" application, and then set the radio as the OBDII scanner Generally same pairing code, it will be 0000 or 1234 (try both). 2) Then open the built-torque, select the application OBDII scanner settings of MAC address and select your car agreement.

5. We have wiki of Mazda 3 Navigation, we are sure this link will help you soon: http://d5151.wikispaces.com/About5151
After installation a car dvd I cannot hear any sound through the speakers or Bluetooth. Music is attenuated, but no phone or GPS instructions can be heard. Is there a hidden menu to more volume GPS and Bluetooth? A: Under normal circumstances, we do not hide the menu for more volume. And set the sound application of GPS (we pre IGO free copy version), check the following settings: You can reinstall the application the Office to check whether it helps or not from our SD card. Also, enter the setup, GPS, make sure you turn on GPS monitoring. You can open the mixing ratio of GPS, so GPS voice will be louder. As for Bluetooth problems, if you put a call through Bluetooth phone, turn off your car doors good, and then open your phone and head unit volume moderate level. You can also enter the factory settings (password is 126), and check the BT settings.
http://www.eonon.com/Car-DVD-Players/Android-Car-DVD.html