I have a Garmin Echomap Plus 73SV at the dash with a GT52 transducer off the back of boat. And a 93SV in the front with a GT54 on the trolling motor. I also have a Garmin echomap ultra 126SV on the front that I use livescope for. I have another GT54 ducer that came with the 126. I was going to install the extra gt54 in the back. Can I hook it to the 73 plus and run a network cable to the 126 in the front. Will the 73 plus work with the GT54 ultra transducer? Another question, If I have 2 transducers side by side on the back will they interfere with one another?