I installed a Victron MPPT 100/30 solar controller near the cutoff switch under the bed. Here I can access the controller through the door on the passenger side, mainly because I was reticent about drilling through the sidewall (although I am reconsidering upgrading to a through hull type of connection). I chose this location because there always seems to be more open area on that side of the camper when parked. I have seen on the forum where others installed the port in the Nautilus area.Ikanizer said:Can you describe how you have your ground array connected to your system in terms of distance and wire gauge? I have a ‘23 400 upgraded to 3 x 100 ah batteries and need more solar.