I have a 02 delta 3H and my plug got pulled out the other night after a ropin the wires comin from the trailer are white,green,yellow,black,and red and thats all.I don't know what goes to what I tried matchin the colors to my plug where it said to put the colors and I only had a right blinker Please Help

There's some info on this page that may be helpful....  http://www.horsetrailerworld.com/home/wiring.asp

If you can find the common ground wire, it is a simple matter to temporarily touch one wire at a time with a battery charger's lead, to determine the function of all the lights and brakes. Mark each lead with masking tape until you have determined each wire's function. Rewire them into a plug following your truck's wiring diagram, and you'll be good to go.

Gard