Q: Is my Garmin GPS compatible with custom maps?
A: Visit this Garmin site and see if your GPS is identified on the list of compatible devices https://support.garmin.com/en-US/?faq=xbQGSy1tl95uO4ZmONdQZ8

Q: Does my Garmin GPS use a microSD card?
A: Visit this Garmin site and put your GPS model into the search box.  It should provide you with information about the required SD card for your GPS

If you have specific questions or need help don't hesitate to contact me!

How to install a custom map SD card on a Garmin Montana:













How to install a custom map SD card on a Garmin/BMW Navigator V: