4 | KDC-W4544U/ KDC-W4644U/ KDC-W4044U/ KDC-W413UGeneral functionsPower/Source Select button: [SRC]Turns on the power.When the power is on, the source switches betweenTuner (“TUNER”) , USB or iPod*1 (“USB” or “iPod”),CD (“CD”) , Auxiliary input (“AUX”), and Standby(“STANDBY”) each time this button is pressed.Press at least 1 second to turn off the power.⁄• When an optional accessory is connected, the source namefor each device appears.• When connection of the iPod is recognized, the sourcedisplay changes from “USB” to “iPod”.*1 Function of KDC-W4544U/ W4644U.Volume control: [AUD] knobTurn the knob to adjust the volume.Subwoofer output: [AM–]Switches between ON (“SW ON”) and OFF (“SW OFF”)each time this button is pressed for at least 2 seconds.⁄• You can do this function when “SWPRE” in (page 6) is set to “SW”.Auxiliary inputConnect a portable audio device with mini-plugcable (3.5 ø).⁄• Use the mini-plug cable which is stereo type and does nothave any resistance.• The auxiliary input requires the setting made in “AUX” ofFaceplate release: ReleaseReleases the faceplate lock so that it can be removed.Refer to the following diagram when reattaching thefaceplate.¤• The faceplate is a precision piece of equipment and can bedamaged by shocks or jolts.• Keep the faceplate in its faceplate case while detached.• Do not place the faceplate (and the faceplate case) in areasexposed to direct sunlight, excessive heat or humidity. Alsoavoid places with too much dust or the possibility of watersplashing.• To prevent deterioration, do not touch the terminals of theunit or faceplate with your fingers.Switching display: [DISP]Changing the information displayed. Refer to page 7for the details of the display setting.Text/Title scroll: [DISP]Scrolls the CD, audio file, and Radio text display whenpressed for at least 1 second.Muting volume upon reception of phone callWhen there is a call, “CALL” is displayed and the audiosystem is paused.When the call ends, “CALL” disappears and the audiosystem comes back on.The audio system comes back on when [SRC] ispressed during a call.⁄• To use the TEL Mute feature, you need to hook up the MUTEBasic Operation[DISP] [1] [2] [3] [4] [5] [6][] [D][ ][FM+] [AM–][SRC] ReleaseAuxiliary input[AUD]USB TerminalDisc slotSearch