6 | KDC-U446/ KDC-U346/ KDC-U5046/ KDC-U4046/ KDC-U3046GeneralRemoving the FaceplateThe faceplate of the unit can be detached and takenwith you, helping to deter theft.Detach the faceplatePress the Release button.Reattaching the FaceplateRefer to the following diagram whenreattaching the faceplate.¤• After pressing the Release button, detach the faceplateimmediately. If the faceplate is left attached, it can falldue to vibration and so on.• The faceplate is a precision piece of equipment and canbe damaged by shocks or jolts.• Keep the faceplate in its faceplate case while detached.(KDC-U446/ KDC-U346/ KDC-U3046 only)• Do not place the faceplate (and the faceplate case)in areas exposed to direct sunlight, excessive heat orhumidity. Also avoid places with too much dust or thepossibility of water splashing.Muting Volume upon Reception ofPhone CallThe audio system automatically mutes when a callcomes in.When a call comes in“CALL” is displayed.The audio system pauses.Listening to the audio during a callPress the [SRC] button.The “CALL” display disappears and the audio systemcomes back ON.When the call endsHang up the phone.The “CALL” display disappears and the audio systemcomes back ON.⁄• To use the TEL Mute feature, you need to hook up the MUTEwire to your telephone using a commercial telephoneaccessory. Refer to (page20).