Garmin transducers

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?

You could replace the GT52 with the GT54 as the Echomap Plus is compatible, but just partially. On the Plus unit, you would have access to 2D, 800khz ClearVu, and and 455kHz SideVu. But, you would not have access to the UHD frequency SideVu (1,200 kHz). The GT54 will share from the Echomap Plus to the Ultra via ethernet. As with all transducers, running multiple transducers at the same frequency will cause crosstalk interference. Running them at different frequencies will minimize interference.