What do I need to link my helix 7 with si and di finder to xi5 motorguide

What are your expectations? The helix should be able to show 2d sonar if your motorguide Xi5 is equipped with sonar.  There is an adapter cable available from motorguide. If you want anything more than that, you need to switch brands of motor or fish finder. Humminbird with Minnkota or Lowrance with Motorguide

3 hours ago, redmexican5081 said:

What are your expectations? The helix should be able to show 2d sonar if your motorguide Xi5 is equipped with sonar.  There is an adapter cable available from motorguide. If you want anything more than that, you need to switch brands of motor or fish finder. Humminbird with Minnkota or Lowrance with Motorguide

Lowrance also has the ghost trolling motor.