Fish Finder?

[papogator24]

Currently I have a Northstar 550i and I would like to get a fish finder as well. Is there anyway I can get a fish finder to integrate with my northstar or am I out of luck that I would have to buy another gps with fish finder? I dont want to clutter my helm station with electronics. What is the best route to go for me?

 

[papogator24]

Ok since I did not get any response, does anyone have any experience with the Northstar 650? The only thing though, where would I install the antenna?