There is a menu function on the x-125 to accept temp, under the screen display function on the X-125. However, if the unit is always reading 32 degrees the problem is likely that there is no temp probe installed on the X-125. I believe that on the boats that come with the X-125 the temp probe is not standard equipment. The two temp probes on the transom are likely for the console LCR and the 1440 flasher. From my experience,the easiest way to get front temp is to replace the trollong motor transducer with one that has the temp probe built into it. I beileve that lowrance als selld a separate adapter y-cable that plugs into sonar plug on unit and the existng transducer and an accessory tempprobe plugs into the Y also. That probe can be put on the trolling motor.