When your SD Card arrives, it is simply a matter of inserting the SD Card into your device and CorribCharts will appear.
However, there are a few steps which must be taken to maximize the detail of the map. Please click here to read instructions
Troubleshooting: If CorribCharts is not appearing on your NUVI, try removing the SD Card and re-inserting. If this does not resolve the problem, please click here