KDC-X997/KDC-BT955HD/KDC-X897/KDC-BT855U/KDC-X697/KDC-655U/KMR-555U 3. Basic operations3-5. General operations3-5. General operationsPowerPress [SRC] to turn the power ON.Press and hold [SRC] to turn the power OFF.Source selection1. Press [SRC].The currently selected source is displayed and enters the Source selection mode.2. Select a source using [Control] knob.Source DisplayStandby "STANDBY"SiriusXM (optional accessory)[1] "SiriusXM"HD Radio[2] "HD RADIO"Tuner[4] "TUNER"USB device connected to front USB terminal "USB(FRONT)"USB device connected to rear USB terminal "USB(REAR)"iPod connected to front USB terminal[1] "iPod(FRONT)"iPod connected to rear USB terminal[1] "iPod(REAR)"Pandora® of iPod connected to front USB terminal[1] "Pandora(FRONT)"Pandora® of iPod connected to rear USB terminal[1] "Pandora(REAR)"Pandora® of device connected via Bluetooth[1][3] "Pandora"iHeartRADIO of iPod connected to front USB terminal [1] "iHeartRADIO (FRONT)"iHeartRADIO of iPod connected to rear USB terminal [1] "iHeartRADIO (REAR)"iHeartRADIO of device connected via Bluetooth[1][3] "iHeartRADIO"aha™ of iPod connected to front USB terminal[1][3] "aha(FRONT)"aha™ of iPod connected to rear USB terminal[1][3] "aha(REAR)"aha™ of device connected via Bluetooth[1][3] "aha"Bluetooth audio[3] "BT AUDIO"CD[1] "CD"Auxiliary Input "AUX"[1] This source can be selected only when it can be played.[2] Function of KDC-X997/ KDC-BT955HD.[3] Function of KDC-X997/ KDC-BT955HD/ KDC-X897/ KDC-BT855U.[4] Function of KDC-X897/ KDC-BT855U/ KDC-X697/ KDC-655U/ KMR-555U.Setting the source switchingSource switching can be set so that pressing [SRC] switches among sources. For more details, refer to<14-6. Initial settings>.Source switching can be set so that "Pandora", "iHeartRADIO", "aha", and "AUX" sources can not beselected when not in use. For more details, refer to <14-6. Initial settings>.VolumeTurn [Control] knob.USB terminalA USB device or iPod can be connected.The CA-U1EX (Max. 500mA) or KCA-iP102 (optional accessories) is recommended to connect aUSB device or iPod.Auxiliary inputA portable audio device can be connected with a stereo mini-plug (3.5 mm ø).