Correct ... MEGA 360 connected to HELIX MEGA+ G3N at the bow can then be shared to a G2N at the console thru Ethernet ...
You will need the 9 M360 2DDI Y cable to connect MEGA 360 and the MDI to the HELIX MEGA+ G3N ...
https://humminbird.johnsonoutdoors.c...-7-pin-y-cable
Rickie