Was recently given this GPS unit as a gift. It's a few years old but brand new. It has inshore saltwater maps on it already but no lakes which doesn't help me because I only fish freshwater. What chip or chips do I need to get for this unit?? This is the first GPS ive ever had
I have a Garmin 421 unit that came with a boat I bought a few years back, it came with a shore line salt chip from Maine to Florida and then some .I then bought a northeast chip from Garmin . ct. ny. vt. mass. NH. penn. love this unit. look up garmin for sd cards and you should find what your looking for.