That gets harder. The outlet is behind the wall where the Dirt Devil is. If you found no bag in the unit, good chance the factory worker forgot to plug it in.
That wall comes off with about 9-12 philips screws. While you're in there, take some time and securely attach the heat duct going to the register. Otherwise at som point you'll be in there agin .......
Most of us have also made a stop at Home Depot and used heavy duty Velcro to reattach the wall when reinstalling rather than use the screws.
Vaughan & Tracy 2013 RW 36RL, 2013 F350 DRW CC, 2016 Focus. MorRyde IS, MorRyde pinbox, disc brakes, Comfort Ride Hitch. "Life is to be embraced, Grab it with both arms ! "