dcelectric

Hi, I'm trying to help a friend out with a camera that someone has cut the plug off of. Its an IC REALTIME brand model EL1000. It has five wires and a copper shield wire. The wires are yellow, blue,green,white and red. Can anyone tell me which wires are which? I know the red is 12v + and the yellow should be video signal but not sure what the others are. I'd appreciate any help and thanks in advance