I 2nd what Tom said. My Tracker came with a get-by bottom line Humminbird finder. It lasted about a year, and konked out (screen fogged / quit powering up, etc.....) One of the first things I did when I got the boat was mount an Eagle up front. The H-Bird helped me mainly in finding the river in our lake, but that's about all. Since then, I've replaced the H-Bird with an Eagle. Yes, it does hang out over the mounting surface that Tracker provides for the "package" finder. But, it doesn't matter to me.
All said, keep the "package" finder, and get you a hand-held GPS. I've got a Garmin, and it does me good.
A young man's opinion
LJ
If I Ain't Crappie Fishin', I'm Thinkin' About It............