Navigation issue

I have a 2016 4runner, I recently purchased a 2021 Geo Pro travel trailer and a Redarc break controller. I have the factory installed tow package with the 7 prong plug. I bought the matching plug cable from Redarc that is designed for my 4runner. I also have a Furrion camera on the trailer. When I plug the camper into my 4runner I loose my navigation system. Anyone else ever have this problem?

 

Just the navigation or the entire headunit (screen) turns off/powers down?

 

Just the nav portion, everything else works fine. The nav system freezes up when I am pulling my trailer. Nav sustem works fine when it is not plugged in

 

That is a very strange electrical gremlin that is beyond me. Subbed for resolution as I am very curious wtf that is. Good luck!