Based in US, Germany or UK?
try flipping through the owners manual for a nav+....for starters:
http://www.nav-plus.com/instructions/operation.html
you might need to use www.freetranslation.com to get to the appropriate menu.
Good luck!
try flipping through the owners manual for a nav+....for starters:
http://www.nav-plus.com/instructions/operation.html
you might need to use www.freetranslation.com to get to the appropriate menu.
Good luck!