GROM MAZU3 for Select Mazda Cars USB Android iPhone; Bluetooth HD Radio AUX Capable car kit GROM-USB3 adapter connects USB 2.0 flash drive and mass storage device, iOS and Android devices, via USB port, to the stock stereo in your car. Connect, play, and charge Android device. Control with car stereo or steering wheel buttons Manage your tunes with free Android App You can control the playback through your car stereo or steering wheel controls. OPTIONAL: GROM Bluetooth Dongle (SKU: BTD); AUX-In 3.5mm and 5V USB charging cable (SKU: 35USB);HD Radio tuner (SKU:HDR1) Please see compaibility list in Product description! For help with installation please watch "GROM Audio" video channel at YouTube.com.