Great tip! Minolta makes a bracket to secure your trolling motor to the boat deck. I put one of these on and couldn't be happier. It will prolong the life of your trolling motor because it won't be bouncing around in transient.
Thank you so much for the tip I did it and love the it. I talked with Garmin and they gave the ok as well do to the fact that it's not extremely tight around the motor.