Humminbird Helix Transducer

I have the Helix Gen 3 Mega SI - I wonder what other Hunminbird unit I could use with that same transducer/wiring? I was thinking of moving that unit up front and getting a bigger one for the console - possibly the 9 or 10 and I looked at the Solix but didn’t know what all was compatible.

Which Helix Gen3 MEGA SI unit do you have?

That I’m not sure of. On the bottom, it says Helix 7 MSI GPS G3N

Well it is one of the two versions of the third generation Helix 7 MEGA SI----the other one is Helix 7 CHIRP MEGA SI GPS G3 that is not networkable.
Plus you don't want that transom transducer on the trolling motor, there is a trolling motor puck version for that application---XTM 9 HW MSI 150 T

The 8, 9, 10, and 12 units are MEGA SI+ and their standard transducer is the XM 9 HW MSI T and is about twice as long as the one that comes with the two Helix 7's.

Ok I’ve got some checking to do. I’m not sure if it’s networkable or not. I was going to put it up front. I have the Terova up front with the built in transducer. Then I was hoping to use the same wiring in place for the console.

The N in G3N means Networkable.

You can use the same power cord, but may have to change the fuse depending on how big of a unit you add.