Wahou

Unfortunately, my other truck powered both. This is a horse trailer with a tack room. I used to could turn on the truck and the interior tack room and loading box lights would work, so it has to be something to do with the 12v battery connector, which I do not have.

Thanks Guys... I'm taking it to the dealer.

Just got a new 3500 HD and unlike my last truck my powered Jack and interior lighting on my trailer don't work. How can I fix this? I assume it is either a fuse issue or the aux power is not connected, but I can't tell by looking.