I have some quesions about the difference between the 2. Is the sonar and pinpoint gps on the xi5 the same as the ipilot link for the minn kota? Will the xi5 link to my humminbird 859 on bow and 899 at console, like ipilot link would? Does the xi5 have the follow the contour mode like ipilot link? Motor Guide is quite a bit cheaper and im trying to figure out the difference between the 2 and find out why one is cheaper than the other.