Almost since I got my 09 WRX (~700 miles) I have been experiencing a grinding and squeaking from my breaks. The car has about 3800 miles now, and it has never gone away. If I break gently and slowly the sound is minimized/disappears, but under normal breaking I always hear it. I have pretty much disregarded it as my pads/rotors breaking in, but after 3800 miles this is still happening. I am familiar with the sound, it sounds exactly like my 95 legacy did when the pads were worn out. This was happening at 700 miles though!, I have never heard of pads wearing out in 3800 miles, much less 700. I don't drive this car aggressively, I don't floor it into red lights and slam on the breaks etc so I am kind of at a loss as to what is causing this problem. Anyone else experiencing this on a new WRX or know what is causing this?
TLDR: My breaks sound like they need replacement pads after 3800 miles on a new car. Why?