Wire harness? Use?

2014 2552.  The triklstart thread got me looking.  First no trick l start that I can find. But did see this bunch of wire bundle. 12 wires, about 18ga, 2 about 14ga., all have been shrink wrapped on the ends very neatly, just hanging from firewall where air cleaner goes back.  Blu/white,2x blu,tan,yel/green,gen/red,grnx2,purple/gen,yellow,blu/purple,tan/org.  At least the visible ends aren’t attached to anything, hidden ends go into a big,wrapped bundle. What would these be for?

I asked Kermit (the prior owner of PC) and he said that was a Ford harness that came on the chassis cab from Ford's factory.  It's not used in motorhomes but is used for things like busses and ambulances where things like route signs, sirens, flashing lights and so forth are switched on and off from the dash area.

My chassis is a 2014 also although the PC is a 2015 model.