Installing 3 Garmin Finders

I am installing 3 Garmin fish finders nd I need advice on how to hook them all up so that they will communicate with each other.
Here is what I was thinking but not a 100% sure it will work. Need help here. Also need to know if you would put the 106sv transducer on the back of the boat or the trolling motor.

Yea that seems right. Just make sure the transducer is compatible with box #3 (and #1) otherwise you have to change it up. Once you have the transducer wired to a head unit that can read it, it will be broadcasted to all other units regardless of their make/model.

Did you rob Bank of America?

T Bird --- How did you know? Lol. I got a Garmin for Christmas the last 3 years. This year was the 106sv