I'm a proud new sailboat owner and need to know how to access inner hull area to update both speed and depth transducers. I imagine the original cables pass by the nav table from the head to somewhere below the cabin floor. With one transducer on port and other starboard, do I need to remove all floor boards ? Also purchased a ST60 wind instrument and its probably a good time to install the mast cable as well. Any advise would be much appreciated.