Very new here so forgive me if I am messing up. Here is my situation. I just purchased an Ultrex with mega down. I also purchased mega 360 for the ultrex and a Helix 10. How do I connect all this? The trolling motor has a round connection as well as the 360 and the Helix has a small connection shaped like a monopoly house. Can someone please explain what connects to what and what additional connections I need. I am overwhelmed with this....