Garmin Panel - trying to figure out all the details

[Timberwolf]

Thanks, I'll take a look at those changes and try to understand it some more. I was thinking of a G5, but thought the second G3X would just override that need?

G5 has its own gps and internal antenna, ahrs, and backup battery. A second g3x screen would require all 3 of these to provide the redundancy you get with the g5.

The gsu 25 ahrs is independent of the screens and the second screen would need its own gps antenna to function as a backup for the system. Plus, a second battery, however you would want to skin that cat.

I left out the details of the main bus and essential backup bus as there are 1000 different ways to do it. Recommend you read bob knuckolls book and decide for yourself how you want to wire up the electrical. Each piece of garmin equipment provides a 2 diode separated 12v inputs to assist you with whatever setup you choose.