Device needs to start long, operation is very messed up. Phone function fine. Navimodul above ground and expensive to just IGO ... Unit returned because at once USB Video files exist a flickering image like a 20 Euro DVD player is superimposed and the radio then only can be operated flying blind. Audio settings very bad for a Kenwood unit ... Clear recommendation for: Sony XAV-602BT highend 2DIN Moniceiver, though costs about 90 euro more, but a 100 times better device !! (Navi while Sony only 155 euros extra and TomTom)