I have a Nextbase 512gw. Set it all up and tried it -worked fine. Next time (a few weeks later) on turning on ignition the unit kept going through a cycle of rebooting. It would power on/off but nothing else. I brought it inside and plugged into USB source and it started fine. Took it back to the van and it started fine. Next time (a few weeks later) I had the same thing. The vehicle only gets intermittent use. Not sure if the 512's battery is dropping too low or is there some other problem?
Wyn
Wyn