Yes! My 2012 does the same, sounds like normal either AC fluid or radiator fluid just moving around. I only notice is right after I start driving and I turn left or right I'll hear it sloshing around...I have never heard it past the first minute or two in the car. I don't think it's something to be worried about, but yeah I'd like to know what it is.
I believe my brother's 2010 does the same thing, except he's convinced the water is somewhere in his hardtop (which I'm not sure is possible), but I'd guess it's coming from the same location as mine.