2011 Mazda 3 problem

I got a brand new 2011 Mazda 3 i Sport 4 door sedan in May and it’s been great so far. Lately though, I have started to hear a sound coming from the back left hand side of the car. It really closely resembles the sound of tapping one’s finger on a countertop. When I’m stopped, there’s no noise but when I go I can hear it. As I go faster it goes faster as well and when I slow down it slows down. Does anyone have any idea at all what is going on? Thanks :slight_smile:

Mr. Obvious, Here. Have You Checked The Tire At That Location To See If There’s A Stone Or Something Stuck In The Tread ?

CSA

maybe not the tread but the brake dust shield. Wiggle the shield a little bit then drive it around a parking lot to see if that clears it up