With the season coming to an end we all have or are putting our boats away for the season.   In the process of doing this it is important to take care of your electronics.  For most of us this might be the only time we think about our sonar units on the maintenance side.   Keeping the unit updated it key to keeping it running in top shape.  Here is a short video from Manitoba Fishing Adventures explaining how to update your Humminbird Helix Units.