wire harness - my dumb mistake, any suggestions?

Thrilled! I got home with my brand new Pod today! Hurray!
I'm irked! I did a dumb thing. How do I solve this:
As soon as I got home with my new 178, I parked it in my driveway, disconnected the hitch, put down the stabilizers and started to move my tow vehicle.
Guess what I forgot to do - disconnect the wiring harness!
I heard a noise. "Uh-oh! That's not good," I thought. All of the wires from the tow vehicle side were pulled out of the plug except for the ground.
I don't know which wire goes to which pin. I figured I'd try to find out, like this:
I connected a long piece of wire from the ground on the TV end to its mate on the trailer end.
Then, turning on a turn signal on my TV, I connected another long piece of wire from one of the loose wires that used to be in the plug to the plug on the trailer, and touched each pin.
Not one pin that I touched made the trailer signal blink (now that I think about it, I should have tried the other loose wires). But I thought I heard something pop, but maybe not.
Does anyone know how I can find the pinout for the TV end? There's an RV service place not far from me but I don't think they're very good, and besides, I'm afraid of getting a ticket before I get there.
Any suggestions?
Thanks.

Just remember when you are looking at the BACK side of the plug and outlet (to screw the wires back on), all of those connections are mirrored.  So on the back side of the truck connection pin 4 is now on your top-left.

Wire colors will vary, but the position on the plug should be the same. As far a I know, all of the fuses for all 12v systems are located inside the POD power panel. The fuses manage the 12v system, and the breakers manage the 120v system.