lonely clement trailer

[truckerpat]

I bought a 2007, clement 32 foot dump trailer. It is both lock and liftgate air actuated. The trailer had some parts of it vandalized, the pig tails were cut and so on. I got all the marker, blinker and running light pig tail set up. but on the other side of the trailer there is another pig tail attached. It has 3 wires that run to it. My question is, can anyone help me cause I think this trailer is electric over air actuated and I do not have a clue on how to wire this trailer up. As we all know it is hard times, but I am hoping soon there might be work for all us truckers and was hoping someone out there might have a diagram that could head me in the right direction in getting the lift gate and locks working.