Got my voltmeter in the mail and installed it this weekend. Thanks for the quick service.
It's in the panel to the left of the windscreen, above the speedo:
In my dark garage:
Haven't ridden with it in the sunshine yet, but I expect it won't read so well. May be a good excuse to buy a tinted windscreen... Anyway, I'm very happy with it. The wires were long enough to tie into my power outlet, which runs thru a switched/fused relay. I only wish I could buy a bezel for it to hide my hacksmanship.