Of course. Also, if you're not staying at an AI (and really, even if you are) I'd recommend buying a cheap Jamaican cell phone when you get to Jamaica. You can pick up a phone with enough credit for a few weeks for under $40, that way you can get phone numbers from any drivers you like and just call them when you need a ride. Also great for calling back home, and it's almost always cheaper than what you'd pay using your US phone.