My trailer plug was damaged beyond repair and I was hoping replacing it would be easy enough but things got a little confusing. The old plug has one yellow and brown wires stuck together, one brown and green wires stuck together and one white. The only new plug I could find comes with only one wire in each color listed above. This is where I got lost and didn't want to risk frying either the trailer or the truck's electrical system by doing something stupid. Any help would be appreciated.