14 | KDC-W4544U/ KDC-W4644U/ KDC-W4044U/ KDC-W413UOther FunctionsActivating Security CodeWhen Security Code is set, possibility of theftis reduced because input of Security Code isprompted to turn on the unit once it is turned off.⁄• You can set the Security Code with a 4 digit number of yourchoice.• The Security Code cannot be displayed or referenced. Makea note of the Security Code and treasure it up.1 Select StandbyPress the [SRC] button.Select the “STANDBY” display.2 Enter Menu modePress the Search button for at least 1 second.“MENU” is displayed.3 Select Security Code modePress the [FM+] or [AM–] button.Select the “CODE SET” display.4 Enter Security Code modePress the [AUD] knob for at least 1 second.When “ENTER” is displayed, “CODE” is also displayed.5 Enter Security CodeOperation type OperationSelect the digits to enter Press the [4] or [¢] button.Select the Security CodenumbersPress the [FM+] or [AM–] button.6 Confirm the Security CodePress the [AUD] knob for at least 3 seconds.When “RE-ENTER” is displayed, “CODE” is alsodisplayed.7 Do the step 5 through 6 operation, and reenterthe Security Code.“APPROVED” is displayed.The Security Code function activates.⁄• If you enter the wrong Code in steps 5 through 6, repeatfrom step 5.• When the Security Code function is activated, “CODESET” changes to “CODE CLR”.• To deactivate the Security Code function, see the nextsection .8 Exit Security Code modePress the Search button.Deactivating Security CodeTo deactivate the Security Code function.1 Select StandbyPress the [SRC] button.Select the “STANDBY” display.2 Enter Menu modePress the Search button for at least 1 second.“MENU” is displayed.3 Select Security Code modePress the [FM+] or [AM–] button.Select the “CODE CLR” display.4 Enter Security Code modePress the [AUD] knob for at least 1 second.When “ENTER” is displayed, “CODE CLR” is alsodisplayed.5 Enter Security CodeOperation type OperationSelect the digits to enter Press the [4] or [¢] button.Select the Security CodenumbersPress the [FM+] or [AM–] button.6 Press the [AUD] knob for at least 3 seconds.“CLEAR” is displayed.The Security Code function deactivates.7 Exit Security Code modePress the Search button.⁄• If a wrong security code is entered, “ERROR” is displayed.Enter a correct security code.Entering Security CodeThe Security Code is required to use the audio unitwhen the unit is first used after removed from thebattery power source or the Reset button is pressed.1 Turn the power ON.2 Do the step 5 through 6 operation, and enterthe Security Code.“APPROVED” is displayed.Now, you can use the unit.