I just purchased a new TM from Brian at BBG marine, and this was what he told me I needed to hook the TM into my Helix 10 G2N. I am running the factory SI transducer on the rear.

Humminbird AS EC QDE Ethernet Adapter Cable CW396961
Minn Kota MKR-MI-1 Adapter Cable f/Helix 8,9,10 & 12 MSI Units CW80634

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