I have a Terrova with mega di built in to the motor itself. I just recently mounted me a helix di only up there and that was a game changer for me. I can see the structure I am over, mark waypoints, and if I am near shallow water I can monitor depth. I mounted a helix with si on dash with the transducer on the transom. I think the next piece of the puzzle is a ethernet cable to link them then I can see the si imaging feed from rear of the boat when I am at the bow helix.

Not sure if you already have a si model that is ethenet capable but if you do you could save a buck on the new helix by going with a di and just link them.

Please somebody on here can correct me if wrong.


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