inputs.text: eh - unit nice works mostly advertised no instruction manual printed electronic ehemails seller go unanswered case handy installation pretty straightforward wires clearly labeled one piece paper box serial number says warranty not valid unless professionally installedit takes 10 seconds boot starting vehicle gps takes least another 10 seconds boot want start enter address take least 30 seconds start enteringonce not power requires complete vehicle power restartit odd said seller not answer ehemailsoverall radio nice not currently use bluetooth camera functionsthe dvd player works well long sun not shiningthe kids cannot see screen glare fine evening night