Main fuse

I connected the jump wires the wrong way and now I don't have power to the secondary interior fuse box. Where do I find the main fuse? I looked at every corner and I can't figure out where this main fuse is that feeds the secondary fuse box..can someone help please?

 

You have to pull the entire fuse box out to get it out. Look around on YouTube there is a video.

The main fuse is a group of large fuses between the battery and the rest of the electrical system in the truck. If you look closely in your engine fuse box you will see small “windows” to look into the main fuse and see if the contacts are burned up or not

 

Thank you very much!!. I really appreciate your help