Troubleshooting problems with marine wiring
By Dave Osmolski
Last spring I installed a new combination sonar (depth/fish finder) and GPS on my boat, which replaced separate units. The new unit has a 7-inch screen, and the older units each had 4-inch screens, so I didn’t reduce the footprint at the helm.I replaced the old units with the same brand and used the wiring from the old unit to power the new one. Installation went well, and I used my new unit to explore the waters around Pine Island, Florida.