My RV didn't come with an USB charging ports or even a cigarette lighter socket so I'm attempting to install my own. It looks like this:
and I'm going to drill a couple holes in the ledge below the TV here so it will be pretty close to the control panel:
My question is this: I think I can tie into any hot (positive) wire from behind the panel but what about the negative/ground from the back of the usb/cig port? Can I also splice into one of the negative/grounds in the back? The back of the usb/cig socket has 2 poles...positive and negative.
Any help would be very much appreciated!
note: these are generic pictures from the internet. I forgot to take pictures of my camper before I came to work today. ;-)