FAQ for Pumpkin KD-C0223 Android 4.4 Car StereoQ1. Does it fit in a Nissan Xtrail 2011 ? A:Sorry, it doesn’t. There is another Pumpkin Car Stereo which fits Nissan Xtrail 2011:http://www.autopumpkin.com/pure-android-4-2-twin-din-universal-nissan-car-dvd-gps-navigation-with-6-2-inch-lcd-hd-capacitive-touch-screen-3g-wifi-bluetooth-support-obd2.html Q2.Does the Android operating system allow calls and txts from Google Hangouts and Google voice ? A:Sorry, the builtin mic of the Car DVD Player is specifically designed for the Bluetooth phone call. Q3.It says OBD2, but how does that work? Does it read engine error codes ? A:Here is an instruction video about it : https://www.youtube.com/watch?v=XZ9Cw-xvkx8&feature=youtu.be&list=UU5idhlXZfjcSV9KDp-gcCOw Q4.Can you make /receive calls while using the navigation ? A:Yes. A banner comes on at the bottom of the screen no matter what app you’re in. It has a few buttons, one is for answer, another is for ignore. Q5.Can this be tethered to a cellphone via Bluetooth for internet access ? A:Sorry, it can’t. But you can share your cellphone as Wifi hotspots, then use the radio to connect to the wifi signal from your cellphone and use the internet. Q6.What is the unlock code to get to the advanced options ? A:You can find it in the manual, which is 126. Q7.Can you control high and low pass filters with this unit? A:There is an equalizer in the music program. You can get apps that might better fit your needs as this head unit is running Android system.…