The issue is updating the system with new maps. My car's nav system is now about two years old and I find about 1 in every 20 addresses or so it doesn't recogni

The issue is updating the system with new maps. My car's nav system is now about two years old and I find about 1 in every 20 addresses or so it doesn't recognize. Overall I do feel built in nav systems offer the best experience, I just wish car manufacturers could figure out a better update process.