So... I paid the $40 for the month of November with Verizon for their International service, so I can use phone anywhere on the Island and listen to music and use my GPS and not incur a bunch of roaming charges?? Or do I need to only still use my phone when I have a wifi connection? I want to listen to music at the beach and in the car, also use GPS to get around. Is that cover on my International Verizon plan?