I am replacing the E80 MFD on my Beneteau 40 with a new es127 MFD. I installed digital radar three years ago and understand fro raymarine I need a A80247 adaptor for the es127 - simple enough. I also need a e22158 seatalk to seatalk ng converter kit. My question: Where does the cable now used and plugged into the "seatalk high speed" input on the E80 go? Does it go to the autopilot or to an unpowered seatalk bus somewhere? One cable from the e22158 converter need to go to the seatalk input on the autopilot (or, perhaps to an unpowered bus)? This seems to keep getting more complicated !!! Are there any diagrams available for the Beneteau installed Raymarine electronics - that might help.