I just bought my Charger R/T last week, put on 500 miles at low rpm's, and then started stepping into the gas. At high rpm's and when the pedal down, I start to hear a fast tick-tick-tick-tick sound that sounds like it is coming from inside the cab on the left side up under the dash. It does not sound like an engine noise. Could it be somethng that is loose? Could it be the engine?Any ideas? I am going down to the dealer to check it out tomorrow. As a side note, check out my profile because I posted some photos of my car.