Hello, I have a 2011 Mitsubishi Gallant, yesterday it started making a buzzing/vibrating noise coming from underneath the glove box. It does it the entire time the car is running, but it's not a continuous noise. It almost sounds like a cell phone is on vibrate and someone is calling it. (No that's not it, I already checked the glove box and there isn't anything in there that would be making this noise). The ac doesn't affect the noise in any way, it does it with or without the ac and with or without the ac circulation. I'm stumped as to what it could be, any ideas?