I have the same problem. It started with the popping noise, which only occurred when turning hard to the right, and only on the right wheel. I thought it was just my messed up splash guard catching on the wheel, but I guess not. I've also now developed some squeaks in the suspension. 61k miles.
"So, a dog over-steers, which is more fun than an under-steering Hyena so... you want a Mazda MX-5 because it's rear-wheel drive!"