We miss the leadership of Ricky Rubio ... Teague is a very bad defender and does not see the floor. Rubio had his best shooting percentage season ever and career points scored of his career. Wish we could re-do that trade. Don't get me going .... among players that play the most minutes ... we are now the 7th oldest team in NBA??? 2 year window to win ... we should have kept our talent and let the cake bake!
I don't know what your Helix 7 requires in the manual, but a quick look would figure out if that 3amp is too small.
Definitely wire your sonar to the motor battery using the correct gauge wire and fuse. If you connect it to another battery, it should be a stand-alone. Connecting to the trolling motor battery will generate interference.