Hi all...
Here is a run-through of my Garmin install on my Nitro. I added another 93sv and Livescope. I also added a 20v DeWalt battery to only power the LS to take the load off of my cranking battery. This does not improve the quality of picture for Livescope.
Enjoy, and I hope this helps someone with some ideas for their boat!
Feel free to ask any questions, I'm happy to help.