I'm toying with the idea of getting a GPS unit so that I can plot/swap/follow offroad tracks but before I take the plunge I need a little info about suitability. I'd be looking for a unit that can run off the bike's power supply. Normally this would be a hardwired to the battery (DC) but my XR does not have a battery so my question is does anyone categorically know whether I can tap into the bikes wiring and run it of an AC connection without damaging the unit? If yes, does anyone have a suitable secondhand unit for sale? Cheers, Pikey.