Clunking Noise problems of the 2002 Oldsmobile Aurora

I have had my 2002 Aurora for 2 years and have had to take it to the dealer almost a dozen times for various reasons. None of them have been about the engine. This car has been a problem from the very first day I picked it up at the dealer. It had a defective paint job and they had to repaint the car. Replaced the windshield twice because it was defective. The most annoying thing is a loud snapping noise from the front right side of the car which they cannot fix. I had the car in for repair for this at least 6 times. There is a clicking noise (like a loud clock) coming from under the center of the dash. There is a squealing noise from the front right of the car when you first accelerate from a stand still. To date, nothing can be done to fix the car. The headlights flicker constantly. Most of the time the dealer said they cannot re-create the noises.