36 EnglishTo view the navigationscreenOn <Top Menu>:orOn any screen:The navigation screen is activated.• While the navigation screen is displayed,the touch panel operations are availableonly for using navigation function.• The aspect ratio of the navigation screenis fixed to <FULL> regardless of the<Aspect> setting (☞ page 42).To cancel the navigation screenDDX6023BT/DDX6053BTDDX4023BT/DDX4053BT/DDX3023/DDX3053DDX42BT/DDX35Settings for navigation unit1 On <Top Menu>:Using the external navigation unitYou can connect a navigation unit (KNA-G620T: optional accessory) to the navigation inputterminal so that you can view the navigation screen. (☞ page 76)The navigation guidance comes out of the front speakers even when you listen to an audiosource.Preparation: Select <NAV> for <NAV IF Input> while [STANDBY] is selected on <TopMenu> so that <NAV> is selectable as the source on <Top Menu> (☞ page 46).23Guidance Select front speakersused for the navigationguidance.Volume Adjust the volume of thenavigation guidance. (0to 35)NAV Mute Select [ON] to attenuatethe sound coming outof speakers other thanthe front speakers duringnavigation guidance.NAV Setup Press [Enter] to displaythe setup screen forthe navigation unit.See the instructionmanual supplied for thenavigation unit.Downloaded from www.vandenborre.be