Do any of you have an aftermarket anti-theft device on your cruiser?
If so, was it installed at PC? How do you reset it?
I can't get my 2004 2350 to start and I think it may be the aftermarket anti-theft device.
I have no documentation on it, I cannot even figure out what brand it is.
This all seems to stem from a mama squirrel making her nest in front of the left wheel well under the hood.
While there she decided to munch on several of the non-factory wires there. I think some may have been the anti-theft device. 
Any thoughts or suggestions will be welcome.
(I have checked all the normal things like fuel pump, battery, etc.)
Thanks,
Stan
Well, first question is "What doesn't work?"
""I can't get my 2004 2350 to start "" is not enough to diagnose anything. Help us help you.

Do all the dash lights come on when the key is turned to on?
How did you test the fuel pump? What are the other items you tested (""etc"") ?
MANY times the cheap systems just interrupt the wire that activates the starter. It is usually pretty easy to see the difference between the wiring on the alarm unit and the factory ford wiring. The alarm will need power and ground, these may be 'destination' wires, they go to a specific point to get their power/ground. There may be two other wires to interrut the starter action. Often the wire that comes from the column switch is cut, and the alarm is spliced in-between the cut. Look for a 'factory looking' wire that is connected to TWO of the alarm system wires. One end of the factory wire may go up into the column towards the key switch.
You describe the wire damage as happening in the left front engine compartment. Is the alarm 'brain' there also?
How did you (or did you ever??) arm/disarm "the aftermarket anti-theft device" before this event?
The location you describe the damage might have non FORD factory wires, such as you coach battery charge relay, that are added by PC when the coach is built. A picture of the wires that were damaged would be a GREAT help.
A picture of the alarm 'brain' or control box may help also. If there is only 4 wires out of it, reverse engineering the connections may not be that difficult.
If the dash lights turn on, and the 'no start' issue appears to just be the starter motor not engaging, try running a jump wire to manually engage the starter. If vehicle starts/runs - its probably just a wire interrupt, and I would search for that.
Good luck, and get some pictures! This forum STINKS for posting pictures. We know. If you get pictures and cant post them, we can work around that.