English 13*1*2NAV*3 (☞ page 32) Displays the navigation screen when a navigation unit isconnected.DISC (☞ page 14) Plays a disc.TEL *4 (☞ page 49) Displays the Bluetooth mobile phone setting screen.USB (☞ page 21) Plays files on a USB device.iPod *5 (☞ page 23) Plays an iPod/iPhone.TUNER (☞ page 26) Switches to the radio broadcast.AV-IN 1/AV-IN 2 *5 (☞ page 31) Switches to an external component connected to AV-INinput terminal.Bluetooth*4 (☞ page 53) Plays a Bluetooth audio player.*1 You can select 3 items to be displayed in this area. (☞ page 41)*2 Switches between the previous and next pages.*3 When no navigation unit is connected, “No Navigation” appears.*4 Only for DDX6021BT/DDX6051BT/DDX4021BT/DDX4051BT.*5 Select an appropriate input setting on <AV Input>. (☞ page 42)Displaying the source control screenOn each playback screen, perform the following:orDDX6021BT/DDX6051BT DDX4021BT/DDX4051BT/DDX3021/DDX3051(Hold)• For DDX6021BT/DDX6051BT, pressing and holding TEL hides the operation buttons. ForDDX4021BT/DDX4051BT/DDX3021/DDX3051, pressing FNC/R-CAM hides the operationbuttons.• The operation buttons disappear by touching the screen or when no operation is done forabout 5 seconds.AV SOURCE OPERATIONSSelecting the playback source