Restoring Original Unit Source During Phone Call:Press the SRC button."CALL" disappears from the display, and the volume of theoriginal source is restored gradually.Turning TEL Mute Function Off After Phone Call:Hang the phone up."CALL" disappears from the display.The original source (i.e., the one used before the phone call) isreturned to automatically, and the volume restored gradually.Shut down the audio system temporarily whenever anincoming call is received.The function will not work if a cable is not connected to the carphone.When the telephone rings:When a call is received, "CALL" is displayed and all the unitfunctions are temporarily interrupted.NOTETEL MuteFunction of the KDC-4590R/KDC-4590RVThis function allows you to adjust the setting that is recalledwith the System Q, according to types of speakers.Press the SRC button repeatedly to select the standby mode."ALL OFF" is displayed when the standby mode is selected.Press the Q button to enter the mobile preset plan mode.Press either the 4 or ¢ button to select the type ofspeaker. The setting switches as follows.Off ("SP OFF") / For the OEM speaker ("SP OEM") / For 6/6x9in. speaker ("SP 6/6x9") / For 5/4 in. speaker ("SP 5/4")Press the Q button to end the mobile preset plan mode.When you change the type of speaker setting, the bass, middleand treble tone settings are returned to original levels.NOTE4321Mobile Presetfactor, treble centre frequency, and treble level.Note that some of these parameters cannot be controlled by theaudio control setting feature.Their setting values are different depending on the setting of themobile preset plan mode. (KDC-4590R/4590RV only)— 9 —