30 DDX4028BT/DDX4058BT/DDX3028/DDX3058To 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 36).To cancel the navigation screenSettings for navigation unit1 On <Top Menu>:Using the external navigation unitYou can connect a navigation unit ( KNA-G620T, KNA-G630 : optional accessory) to thenavigation input terminal so that you can view the navigation screen. (☞ INSTALLATIONMANUAL)The navigation guidance comes out through the front speakers even when you listen to anaudio source.23Guidance Select front speakersused for the navigationguidance.Volume Adjust the volume of thenavigation guidance. (0to 35)NAV Mute Select <ON> toattenuate the soundcoming throughspeakers other than thefront speakers duringnavigation guidance.NAV Setup Press [Enter] to displaythe setup screen forthe navigation unit.See the instructionmanual supplied for thenavigation unit.