does anyone know where under the dash in a 2007, RAM 3500 to find the Positive wire that runs to the RV hook up? I would like to grab it mount a toggle switch to it so I can use it for trailer lights and turn them on and off from the cab.

 

Welcome to DF. I will move you to the correct spot.

For future reference:
https://dodgeforum.com/forum/dodge-r...ead-first.html

 

You can download a copy of the service manual from the links in my signature and use the electrical section of it