No, the green wires are for bars that have strobes in them. Normally one of the blue wires (all blue or blue/black) was used for a center rotator, or +/- for a siren speaker if the bar had one. I don't remember if green was used for smart intersections, but I think it was.
If you have a black box mounted to the frame in the center of your bar, its' probably a smart intersection module. Another way to tell is if the intersection lights have a 4 pin connector plugged into them vs. normal intersections having just 1 wire going to them.
The arrow harness is completely separate. Charger is right, it's addt'l wiring for strobes or other options. I think they used this harness on the 360s, as I rewired one of those lately that had a bunch of extra wires in the harness.