Bringing this thread back to life. I currently have the Ray Marine network backbone, that I installed with the RayMarine Autopilot. However, I also have Garmin electronics, and am now wanting to find a way to connect my 2007 Mercury 4 stroke EFI 115hp outboard into the system so I can read it's specifics on my Garmins Gauge page. I probably should have just installed a Garmin backbone to begin with, but at the time made more sense to use RayMarine and Garmin adapters (more Ray Marine connections that Garmin.) Has anyone found a way to hook up the Mercury outboards to their chartplotter via a RayMarine backbone for this information? Also, I have heard of a box that can be installed at the engine, using bluetooth to connect the data with one's chartplotter also. This might be a better way of doing it, as one can also get apps on their smartphone or tablet to read the data as well. Colby