Help with wiring trailer

I have a 2001 chevy s10, The problem i'm having is, i'm not sure what the wires on my truck actually go too...the owners manuel does not tell me, therefore i'm not sure what wires i should hook up to the trailer harness..thank you for any help,Steve

http://www.etrailer.com/pc-VWH~118359.htm

"Connection point is located along the inside of the left rear frame rail."

parking lights brown or brown\white
left turn signal yellow
Right turn signal dark green
Reverse Light green
Ground black or to the body
 
All these wires can be found in the harness at the rear bumper. Ther is a 5 pin connector with these wires in it in the frome rear on the left side near the bumper

thank you shawnvw, that is exactly what i needed to know!