Garmin units do not allow third party charts.

Garmin offers a few options for your unit.

• BlueChart G3
• BlueChart G3 Vision
• Navionics+
• Navionics Vision+

BlueChart G3

• Integrated Garmin and Navionics Content
• Auto Guidance Technology
• Depth Range Shading
• 1' Contours
• Shallow Water Shading
• Raster Cartography
• ActiveCaptain Support
• ActiveCaptain Community

Navionics+

• Integrated Garmin and Navionics Content
• Auto Guidance Technology
• Depth Range Shading
• 1' Contours
• Shallow Water Shading
• Raster Cartography
• ActiveCaptain Support
• ActiveCaptain Community
• Daily Updates
• Coastal & Lake Mapping
• Side Scan Images

BlueChart G3 Vision

• Integrated Garmin and Navionics Content
• Auto Guidance Technology
• Depth Range Shading
• 1' Contours
• Shallow Water Shading
• Raster Cartography
• ActiveCaptain Support
• ActiveCaptain Community
• High Resolution Relief Shading
• High Resolution Satellite Imagery

Navionics Vision+

• Integrated Garmin and Navionics Content
• Auto Guidance Technology
• Depth Range Shading
• 1' Contours
• Shallow Water Shading
• Raster Cartography
• ActiveCaptain Support
• ActiveCaptain Community
• Daily Updates
• Coastal & Lake Mapping
• Side Scan Images
• Dynamic Lake Level
• Sonar Imagery

It is important to be aware that if used together, the Garmin Navionics+™ mapping on a chartplotter will be prioritized over g3 mapping in areas where their coverages overlap.

Examples: 

• A chartplotter with built-in Garmin Navionics+™ Built-In for Coastal North America, Canadian West Coast and Alaska, combined with a U.S., South Florida and North Bahamas Coastal Charts BlueChart® g3 Vision will not display the g3 Vision mapping because the built-in completely overlaps the g3 Vision card coverage
• A unit with built-in BlueChart® g3 U.S. and Western Canada Coastal Charts running a supplemental GN+ chart, such as Central America & Caribbean - Inland and Coastal Marine Charts Garmin Navionics Vision+™, will be able to view their built-in BlueChart® until the overlap occurs in Baja California.  The transition is seamless, and the unit automatically switches to pulling in the priority chart for the Garmin Navionics ™ Vision+ in the area that overlaps. 
• A chartplotter with built-in Garmin Navionics+™ US mapping, combined with a Europe Atlantic Coast g3 Vision Card will display the entire g3 Vision mapping region because the coverage of the two maps does not overlap.

Learn More Here

Yes, there is an optional subscription. You get the first year free!

This yearly subscription provides daily updates and keeps your charts up to the latest version automatically through the Garmin Active Captain app.

Click here to learn more

Simrad units offers the ability to run third party charts.

• C-MAP
• Navionics
• CMOR
• Florida Marine Tracks

Lowrance units offers the ability to run third party charts.

• C-MAP
• Navionics
• CMOR
• Florida Marine Tracks