Does it sound like a low frequency whocka whocka whocka. Is it more pronounced on some surfaces than others? If so, I think it's your tires. Most tires will eventually wear subtle cups and scallops into the tread over time, which start to make noise.

I've noticed that sound on mine as well. However, if I Autocross on them, or drive very aggressively, these features get worn off and the tires quiet down, at least temporarily.

Try taking your car out for a good flogging and see if that doesn't help.

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Not whocka whocka It's very faint and not noticable feel from it on the steering wheel or the read, it's just a low whaa whaa whaa, can here it if the radio's loud or if I'm revving about a certain point. Just thought it was strange cuz I only have 5900 miles on the car.