inputs.text: good nav radio - installationi replaced gm traverse standard radio wo navigation device install easy connector adaptor cables worked fine elongated holes see either side device receive factory molding clips final fit good looked oehem not quite perfect installed antenna dash using joint two sections dash top run wire gps reception great satellite location fast even garage ipod mp3 usb connectors ok really no place run thehem unless run thehem sunglasses compartment top dashproductradio sounds better standard oehem although signal reception rural area not good oehem okgps locates fast provides good 3d view lots info route planning bewildering heading across ny state unit kept advising exit every third exit advise reentering hwy byway head onto another byway totally way final destination straight ahead miles continued deselected default planning options toll roads etc route back pa fairly complex 500 mi trip performed planned nearly identical garman brought along backup first trip suspect one options buglooks like gps map fairly recent maybe late 2011 early 2012 detailed garmin read customer review sellers store site said could update using garmin tomtom maps no clue would unless way replace maps micro sd cardi tried movie dvd picture much better expected useless course unless want pretend drive movieyes steering wheel controls function fine vehicle bluetooth recommend continuing use vehicle systehem not activeate radiofs blutooth not need mike comes systehem phone continue function like original radio steering wheel controls continue work phone caller volumebottom linei happy purchase supplier quick answer questions ehemailed thehem