Just installed a Solix 12 MSI on the bow of my Skeeter. Now I have the opportunity to get a Solix 15 MSI (CHO). I know that both these units use the same transducer (XM14 HW MSI T,) my question is this. If they do use the same transducer, can I just unhook the 12 and hook up the 15? All the wiring is the same, Yes?? All I need is a 2nd transducer for the other unit. All replies are very much appreciated.