Because authorization by the Security Code is required when it's
removed from the vehicle, personalizing this unit is by using the
Security Code is a help in preventing theft.
When the Security Code function is activated it can't be released.
Note, your Security Code is the 4 digit number entered in your "Car
Audio Passport" in this package.
1Enter Standby
Press the [SRC] button.
Select the "ALL OFF" display.
2Enter Menu mode
Press the [MENU] button for at least 1 second.
When "MENU" is displayed, "Security"/ "SECURITY" is displayed.
3Enter Security Code mode
Press the [4] or [¢] button for at least 1 second.
When "ENTER" is displayed, "CODE" is displayed.
4Select the digits to enter
Press the [4] or [¢] button.
5Select the Security Code numbers
Press the [FM] or [AM] button.
6Repeat steps 4 and 5, and complete the Security Code.
7Confirm the Security Code
Press the [¢] button for at least 3 seconds.
When "RE-ENTER" is displayed, "CODE" is displayed.
8Do the step 4 through 7 step operation, and reenter the
security code.
"APPROVED" is displayed.
The Security Code function activates.
If you enter a Code different from your Security Code, you have to
start over from step 4.

Security Code

Setting during operation beep sound etc. functions.
The Menu system basic operation method is explained here. The
reference for the Menu items and their setting content is after
this operation explanation.
1Enter Menu mode
Press the [MENU] button for at least 1 second.
"MENU" is displayed.
2Select the menu item
Press the [FM] or [AM] button.
Example: When you want to set the beep sound select the
"Beep"/ "BEEP" display.
3Set the menu item
Press the [4] or [¢] button.
Example: When "Beep"/ "BEEP" is selected, each time the button
is pressed it switches "Beep ON"/ "BEEP ON" or "Beep
OFF"/ "BEEP OFF". Select 1 of them as the setting.
You can continue by returning to step 2 and setting other items.
4Exit Menu mode
Press the [MENU] button.
When other items that are applicable to the basic operation method
above are displayed afterwards their setting content chart is
entered. (Normally the uppermost setting in the chart is the original
setting.)
Also, the explanation for items that aren't applicable (<Manual Clock
Adjustment>etc.) are entered step by step.

Menu System

Menu system
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KDC-MV6521(E)_U.S r4.5 02.10.8 2:26 PM Page 24