It's a civvy bike from new. Charging is done direct to the battery. Yep, I checked the headstock plug, it's live all the time. I can't find a second plug near the headstock. I've had a really good look around the headstock while I've got the bike in bits - there's no sign of any chafing on any of the wiring, and no sign of any further additions by the previous owner, it all looks standard. There's the odd, unused factory-fit connector at the front (the ones with the spring clips built-in) which I assume are for things like ESA, cruise and the like, which my bike doesn't have - these are neatly tie-wrapped out of harm's way. There's one aux socket at the rear, it has the standard connector into the factory loom, the one at the front is still disconnected, wires taped up, only because I've not got round to reconnecting it after removing the bodged wiring mentioned earlier.
Pete