I bought a '97 aluminum 16' basstracker from my uncle. It came with a Lowrance X85 fishfinder by the trolling motor and has a base for a Hummingbird by the steering wheel. The X85 is dead and I have no idea what Hummingbird model was in this boat before I got it. My question is if I replace the X85 can I use the same transducer if I stay with a Lowrance? As for the Hummingbird I am not sure what to do. I have never fished with a fish finder and I feel like I am fishing blind. Any suggestions would be greatly appreciated.