Hello, I bought an 06 classic about 6 months ago. I bought it from the original owner and he said the graphs came installed from factory. I just noticed there is not a transducer on the trolling motor at the bow. I was told that bcbs mounts a shoot thru hull transducer under the front deck, is that true? If so is that good enough, or should I mount one on the trolling motor? I appreciate any help. Thanks, Brian