I flat tow my 2017 Edge behind my motorhome. I've got pin7 of the wiring harness connected to the battery to keep a trickle charge on it. For my Brake Buddy I currently have a 12V plug I clamp to the battery and have an extension reaching inside to plug the Brake Buddy into. I do this of course since none of the 12V plugs inside the Edge have continuous power. I'd like to install a new plug (or even reroute the wire for the 12V plug on passenger side of console) to a continuous hot feed. Which fuse in the interior fuse box can I grab for this?