HAVE 2 797C2 CAN ANY ONE HELP W/CONNECTING TO WORK IN UNISON? I HAVE TWO PWR CORDS/GPS AND Y CALBLE /I HAVE THE XHS HDSI 180 T TRANSDUCER THATS WHERE I GET STUMPED............HOW DO I SHARE THE TRANSDUCER? I HAVE A CBLE THAT IS A Y,BUT IT IS LABLED DUALBEAM AND ONE IS SIDE IMAGE. I KEEP HEARING OF A SWITCH TS2W ? DOES THS DO WHAT I AM TRYIN TO DO?STLII SEEMS TO ME I NEED A CABLE TO FRONT