A woman (old) or just cool

 

You need to run 1 ground wire from a switch in the cabin to the relay in the fuse box. And ur done. Ur welcome.

 

I did it. I wired four Hella 700ff's using the stock heated windscreen wiring.

Some of you will be disappointed to hear that my truck didn't burst into flames.

Thanks to all the WWNTI's for your inspiration and support.