Two Items:
First: I've added a Mega 360 to my Humminbird Helix 9 at the bow. I have a Helix 9 at the bow and a Helix 9 in the console. I have updated the software to the most current 2.800. Now, do I need to install the 360 update on the bow unit only....or both units.....as they are networked.
Second: I added a Blue Sea Systems bus at the bow to distribute power to my Helix 9, Puck, Front Lights, and 360. I took a before and after photo of the wiring. I thought it might help somebody else thinking of doing the same. I'll post the pictures on here once I recharge my phone.