I am hooking up helix 12 for console with side imaging. I want to be able to use sonar for high speed. If I "y" connect it, can i use it at the same time as the side/down imaging transducer so that it will show sonar, and the other will show DI/SI? Also, which transducer would yall suggest? I am putting a helix 10 on the trolling motor and have the stock transducer that came with it. Would it be sufficiant. Thanks