inputs.text: must tech savvy itehem not grandpas radio - items iswas described however need additional harnesses dont want cut oem wiring carunit take 12 min boot cold start however engine stop acc no interruptionunit depends heavily wifi 3g connection functionality remember latest thing car tech world chinaeurope systems years catching upyou install find oem reverse wire andor amp trigger wire toyota camry w jbl aftermarket harnesses make plug playif not constant internet pick wifi hot spots depending set things upthis unit basically android 40 tabletw functionality dvd player navigation system hd radio tuner w rds ipodiphone friendly computer one boxwith internet connection sure web email watch moviestreaming talk oncebadsno manual came unit spend hr play familiarize new toyyou need wifi3g better constant connectionatt not let tether easiest solutionsd card w nav software not interface andriod 40 get google maps recommended nav softwarehave fun toy great value next gen system really leap forward