Airmar makes most the transducers. Most the transducers are the same and only the plugs are different between electronic venders. Most transducer cables can be cut and the correct plug can be connected by butt splice or terminal strip. With tridata transducer the dept data is not an issue but speed and temp donít inter change very well, itís a case by case basis.
Everyone will tell you you canít interchange transducers and that you canít cut the plug yet they will all sell you an airman junction box which is nothing more a water tight terminal strip.
So, what i'm going to do is leave the dm depth in place and remove the dm speed and take out the spin wheel through hull and put in the st40 depth transducer shorty then i will have two depth readers along with two e80 plotters.