I purchased a boat recently that previously had a Humminbird Matrix 97 unit installed with GPS and depth finder. The unit did not come with the boat as it was taken prior to my purchase, but all of the wiring and accessories are still present and mounted on the boat. The Matrix 97 unit is discontinued so I would like to get a newer model humminbird unit but I don't know if the connections for the depth and GPS accessories are universal or if they differ across their product line. I will post a picture of the connections later today, but does anybody know whether or not the connections are universal? Any help is greatly appreciated, thanks!

My guess would be that they are not the same, but it's just a guess. Try their website if you don't get any help here...

I contacted Humminbird, they were very helpful. Thanks for the reply, I appreciate it.