how exactly does this work i had never heard about doin this until i got on here. everybody around here just usues the battery.
if you use the fuse does it need a ground cause i dont want no **** catchin on fire

 

The fuse goes in between the battery and the switch, as close the battery as you can get. It prevents fire, as soon as the circuit is grounded out the fuse blows, preventing the wire from heating up and catching fire. Its very important to fuse any hot wire

 

so if im wantin to run those auxilary back up lights i just need to run the wire that has the fuse in it to ta fuse that would work like the windshield wiper one and that will be it?

 

I can't even comprehend that last post.
What are you trying to do?

 

the lights that i have came with one wire that had a fuse in it thats the one i run to the fuse box right?

 

Run the power wire from the lights to the fuse box positive post or to the positive battery post. Ground the lights on the bumper or frame. Then run your switch wire inside the cab. You can also fuse the switch wire if you feel it is necessary.