(If the Assault wiring is the same as the Dragon anyway)
On my 09 Dragon the 12V accessory connector was tucked up under the front edge of the dash/cowling plastic (above the brake) on the RH side. Raise the hood, and it was taped to the harness a few inches over from the steering post. Looks like a flat 4 pin trailer connector except it only has 2 pins. The pin is ground, the socket is +12V (actual measurement is around 13.5 - 14V).
The one near the hinge (with a brown wire and a red/white stripe) is intended to externally power the chassis for testing, but ties in to the same points as the accessory connector - either one will work.
LF