I’ve got a very old Hummingbird unit on my 2002 Bass Tracker and can’t seem to figure out how to remove this transducer. I’m sure it’s simple, but I don’t want to just use the smash and pry method.  Any ideas?

On the bracket that mounts to the boat, it's a breakaway mount so take a screwdriver and pop it free and that whole center section will pop up. The screws that hold it to the boat will be behind that portion. 

Got it.  I figured prying it out was the way to go, but it’s old and brittle and I thought maybe better to wait a second for some advice.  Thanks!

 

Now to figure how to install/hook up the new Garmin…

No problem, I thought I had it included in my last one, but apparently I was just thinking it, you'll want to pry up from the bottom in the middle as it's hinged on top of that. 

 

Installing the new one won't be too hard, it doesn't look like you have a stepped transom so that eliminates a lot of complications. The most unnerving part would be drilling holes in your boat. I'd suggest buying a transducer mounting plate that way if you make a mistake you don't have to keep putting more holes in the hull. 

Yeah, I like the idea of a mounting plate.  ??