The unlock process allows us to provide you with only the map data you need at a lower cost. What if you want to navigate in another offshore area that’s not covered in the region you selected? Just purchase an unlock code for another region.

 

Your MapSource unlock code is valid for use with your own Garmin GPS unit. A separate unique unlock code is needed for each GPS unit. If you own more than one GPS unit or upgrade to a new GPS unit, you will need a separate code for each GPS unit. If you personally own two Garmin GPS units, you are allowed to obtain a second unlock code for the same region for your own personal use at no additional charge. Simply repeat the unlock process for the second unit. No more than two GPS units may be unlocked with the purchase of a single unlock code. A new unlock code must be purchased if you have already unlocked two GPS units.