I acquired a switch panel from 12voltguy.com with front and rear winch switches on it. My goal was to hard wire the winch in with the capability to pull it and use the controler on the back of my gooseneck if needed (the winch is on a reciever cradle. I started out by pulling the hand controller apart to see what kind of wiring situation I was going to be dealing with.
Here is a wiring diagram I drew up.
Here is a closeup of the wiring on the "Hey dummy, I am too hot and you need to let me cool down" led.
The blue and white wires are connected with some sort of diodes. I am not familiar with these so maybe some one could chime in with some more info.
I wired the green, white, and black wires into the respective positions on the back of the switch panel. I then wired the red and brown into the other side of the switch. (The switch in the panel was the same type in the controler, a 6 pin, monentary three position switch.) I went ahead and wired in a red jumper to connect to the led. This will be completed at a later date once I am sure of the diode situation needed to make this work correctly.
I used a trusty old 6 pin gooseneck trailer wiring connector to splice into the controler lead. All but one of the colors used to wire the lights up match (brown=tail lights, green=right turn and brake, white=ground, red=accessory/12v, blue=electric brakes, and yellow=left turn and brake (which I matched up with the black wire). To help make future installations easier, I just put the wires in the correct pin slot like I would be wiring it for trailer lights. I mounted the female portion of the connector in the fire wall and connected it's wires to the switch in the panel, and then connected the male end of the connector to the section of lead that I cut out so that it would plug into the winch. I can now wire in another female 6-pin gooseneck connector into the actual warn handheld switch so that I can use it on someone elses vehicle or on my the back of my gooseneck for recovery purposes.
I hope this is not too confusing.