120 Customizing radio settingsChanging the external alertoptionIf you are away from your radio and unable to answercalls immediately, an external alert, such as a carhorn, may activate when you receive a call. Theexternal alert continues for a period of time and is thenturned off.To turn external alert on or off:1 Press Menu and select Radio settings >Alert settings > External alert.(Depending on how your radio is programmed, youmay be able to press a function key to toggleexternal alert on and off.)2 Scroll to either On or Off and press Select.Turning on backlightingWhenever a key is pressed or a call is received, thekeypad and display light up automatically.Backlighting only remains on for a few seconds,unless there is further radio activity. Whenbacklighting is turned on, it remains on until the settingis changed to Off, regardless of radio activity.To turn backlighting on or off:1 Press Menu and select Radio settings >Display settings > Backlighting.(Depending on how your radio is programmed, youmay be able to press a function key to togglebacklighting on and off.)SelectBackAlert settingsExternal alertIndicator levelSelectBackDisplay settingsBacklightingContrast adjust