Hey, I'm getting a weird whistling sound coming from the front of the car. It's pretty loud and it's volume/tone matches the revs exactly. It starts about 2 minutes after starting the car, I thought at first it might be an alternator or something with the fuel system. I took my car to the dealer (of course it stopped making the noise just before I pulled in) so I let the guy there check out my car and I described it to him. He said that it probably has something to do with the aftermarket amplifier the previous owner installed. Anyone else experience anything like this?