I got a used fishfinder listed above and am about to install it.
I have the electric side ran to the fuse box on its own fuse but I have a question about the transponder...( if that is what it is called)
Is there a way to mount this in the boat?
I do not want to drill any holes in my hull so if i could mount it in the boat that would be great. Also, if I do have to drill through the transom what kind of sealer should I use to seal the hole?
What would be the best place to mount the sender inside or out?