I have a 64 Overlander International - Ohio. No factory installed AC. Cut through the virgin ceiling last night, and found 2 wires supplied by the factory. Both were silver fabric romex, 12/2 but one had green writing on it, and the other had red. This is the stamped writing like you would see on a normal romex sheath. Which one should I use, and why were there 2? My only guess would be if someone wanted to put a 12 volt
fan there instead of a 110 AC, but I don't know. I may use the other as a spare thermostat wire, but probably wont. Just curious as to anyone's idea why both were there?