Brake lights have a quick disconnect to take the box off and leave the wiring behind. Got that wired in today. Very nice.
No integrated cooler but its got enough space to stash 4 soft sided coolers in here with no problems. That's way more than enough for a day of riding.
So far I have 2.5 gallons of fuel, compressor, rain gear, 2 coolers, blanket, bottle jack, collapsible tire iron, batteries, and a 12 volt charger wired to charge my camera, or phone while I'm riding and still have more space. I'm going to have to stuff another blanket in there to stop stuff from moving around while I'm riding.