A MPV that I was at today was fitted with a thinkware F770 front/rear set up a few weeks ago, this MPV has a front tilt and slide sunroof and a rear tilt only one, I suggested to him fitting a large solar panel on the underside of the tilting sunroof, we measured a decent 1.4 amps into the cars battery, the cam is hardwired and apart from jumping in car turning ignition to on then off and getting out to reset the 48 hour recording feature when he and wife were away on hols cam has not flattened battery, panel cost £37 needs no maintenance and can't be seen when driving car, we fixed it to glass with gutter seal with tape temporarily to hold in place even though glass sunroof has a tint it still gets 1.4 amps on a decent day, it's never left for more than 2 days without being used so ideal set up for this, might be idea for others ?