Hello Everyone!
First of all congrats for the forum, I have been lurking around quite a while and using most of your tutorials, thank you!
Today I signed up as I needed a clarification....I am going to buy a Garmin GPSMAP 620 to use on rental sailboats and I was wondering if I could upload on it the following map "Bluechart G2 Southeast Caribbean VUS030R".
Should I only unlock it following your tutorials or shall I also update/donwgrade or do something else on the Garmin itself?
Thank you!!!

M.