I have an older Garmin that I might try to install on my bow if the thru-hull ducer wire will reach the front of the boat. I changed to an Elite HDI 7 about a year ago, but I left the Garmin 170C thru hull transducer in place. Thanks to this thread, I will try to hook it up on the bow.
Might have to ask for splicing advice Marty if the wire ain't long enuf.
You could probably buy an extention cable to make it longer