There is not a xducer splitter cable that allows 1 xducer to be used with 2 head units (or 2 stations in your case) ...

You would need a 2nd xducer or leave the existing xducer cable on the deck where it can reach both stations ...
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And you will need a 2nd power cable ...
https://humminbird.johnsonoutdoors.c...ed-power-cable
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Some guys use ram mounts to easily move a head unit to different locations (eliminating the need for a 2nd gimbal bracket) ...

Rickie