Would a helix 9 or 8 and an 1198 use the same type power cord? and are you able to network via ethernet cable a helix and an 999? One more question, Can u use the u2 transducer( in the ultrex )for 2d on the helix ? I speak of the model 410840-1 ds gps g3n or the model 410810-1 ds gps g3n. thanks