You have Voice Command in Tools menu but it won't work on your 3750 because there is no microphone installed. If you want to see how to add one, look at turboccc's [Only registered and activated users can see links. ]. You should have now also enabled 3D buildings and terrain and that will be reflected in your GarminDevice.xml, but doesn't show in menu. You'll have to add the GMAP3D.IMG [3D buildings map] and gmapdem.img [3D terrain map] specific for your detail map to see those features on screen.