anyone know if you can connect a first gen Helix 5 DI to the US2 transducer on a minn Kota terrova?? I know I won't get DI function but can I use the standard sonar without damaging the head unit??? I cooked my original transducer(think I left it on inthe garage) hoping I can still use the head unit with the trolling motor transducer. And yes I need the adapter cable. Just don't want to waste my 40 bucks if it won't work or pooch the head unit????