Are you the guy who wired my 64 Valiant? As bought, someone had wired an electric radiator fan directly to the ignition switch, with NO RELAY. I had to hot-wire it to drive it home.
My advice is read the many, many posts here. youtube and wikipedia until you at least understand what "voltage difference" and "current" mean. Get a free w/ coupon multimeter at Harbor Freight. You can download wiring schematics free from links here. Some are very pictoral. No knowledge needed, just put your finger on a wire and trace it thru. Note they give color and wire gage to help you.