All in one 2010 2011 2012 Mazda CX-7 Double DIN radio android head unit Support 32GB USB Connection Dual Zone Function. More about installation and wiring diagram: http://www.seicane.com/autoradio-android-gps-navigation-system-for-2007-2014-mazda-cx-7-with-dvd-player-mirror-link-multi-touch-screen-obd-dvr-bluetooth-rear-view-camera-tv-usb-sd-3g-wifi-ipod-s167007. This unit has a big nice 7 inch multi-touch screen with 1024*600 HD pixel resolution simplifies the navigation operation and provides a wonderful display for watching all kinds of videos. You will find it easier to reach your destination with the help of the GPS navigation. The bluetooth pairing connectivity is available to have hands-free calls and stream music. The unit has a rearview camera input to install a backup camera to aid in parking. This unit is just plug and play, and the installation is quite easy. No wire of your car needs to be modified or cut for its installation. High Speed 3G&WiFi Internet: The system supports surfing internet via 3G or WiFi. It comes with WiFi module. You can perform Google search on the road with quick search box, play online games, watch videos, download online data and check emails by connecting to any WiFi hotspot in range or 3g internet. Send a picture of your car's dashboard with the year and model enclosed to our presales@seicane.com now, and our pre-sale service team will check if this system work with your car. Wish you like it.