The surface of the hull was scraped flat, the old screw holes were
sealed and the new bracket is now installed.
The speed/temp sensor went on near the outward edge of the trim tab.
The wires pass thru a 1" hole in the transom near the stern drive.
The hole gets a shot of
caulk to prevent water entry and a cover to protect the wires. The wires
need to be routed and secured under the gunwale up to the fish finder
The old fish finder had smaller connectors. The new Lowrance uses a
large "DIN" connector which needs a 1" hole to pass thru the dash.
The fish finder wires
can be seen coming thru the liner above the fuse panel. Another 1" hole
had to be drilled thru the bulkhead.
This is a shot of the finished unit in action.