My car has around 112k miles and is in excellent condition except for the following problem. Behind the driver’s seat in the rear-inside area, there is a chirping sound. This happens when I’m driving on a rough-surfaced road. I was told by the dealer that this is normal due to the stress in the rigid frame of the car. I don’t agree with him. The sound is coming from the area of the carpets that cover the left quarter windows. I decided to disassemble the area, but everything looked normal. I even added insulation, but the chirping still exists. My car has never been in any accident and I keep it well maintained. What is your diagnosis and how can I fix it?
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