m1070 HET 12v setup w/ speakers and radio ideas?

[ger84]

hi- does anyone have any ideas where to hook up a 12v outlet on their m1070 HET? Is there any connections somewhere in the truck that someone found? I know that they used laptops in the trucks but I can't find anything. I know I can just run a direct line from the battery but might ask the community before I start making more work when I know there has to be someone out there that did this. I also plan to put a radio & speakers in the truck. or.... I just bring my worksite battery radio and use that (ghetto style)

THANKS in advance... post a picture if anyone has something set up.