Im running a spare 'in hull transducer' to the helm. Im all set from the helm to the rear of the rigging tube on the starboard side. My only question is how to get the wire from the transducer itself ( its just aft of the fresh water tank) to the rear of the access tube. Only way I see is to drill a hole thru that rear bulkhead(where the fill for the fresh water runs thru)....am I missing something that wont require another hole?..thanks