Hi All, I'm about to replace my original Furuno mast mounted radar dome on my 1983 Yamaha 33 with the Garmin HD model. I am not pulling the mast to hopefully do this. I want to pull the two new wires (power and ethernet cables) with the single Furuno wire bundle. The wires come out of a 3/4" hole in the top of the cabin. Has anyone done something similar and have suggestions? Does anyone have pictures of the internal mast configuration? Does it have electrical conduits? How are the lines routed in the mast? Any help and/or pictures would be helpful. Thanks.