Use the procedure below to enable or disable the tone that sounds when you press a button.

1.Hold down (A) for about two seconds. Release the button when the currently selected Home City name appears on the display.

2.Press (D) 11 times.

This causes [KEY♪] or [MUTE] to flash on the display.

3.Use (E) to select [KEY♪] or [MUTE].

[KEY♪]: Operation tone enabled.

[MUTE]: Operation tone muted.

4.Press (A) to exit the setting screen.