Hello,
The OBD2 connector is behind the bike battery cover. This is the plastic triangular cover by your right leg shin as sat on bike.
Yes the OBD2 data reader is powered by the bike and the connector. No further wiring is needed.
The OBD2 bluetooth adapter you are using doesn't turn off. Its always powered up. So if this is a concern you'll need to unplug it.
You can buy a OBDLink LX or MX model which auto powers off, but only when it senses battery voltage drop. These are x7 or x10 the price.
The Virbs will detect this device (once connected to your bike) and Blutooth Scanning. It'll then automatically connect each time you turn on the camera.
Remember, tge Virb may not find your OBD2 scanner the first time, so keep scanning for it until found.
Warlord, do you have a particular power-up sequence for the bike/camera? I've found that I'm not getting the OBDII data everytime I ride.
I've done a quick test vid. I'm still unhappy with the vibrations coming through the mount. Excuse the dodgy music was just playing around with the VIRB edit music clips.
Footage is also rather boring, average speed check camera section on the M4!