We had this problem with ours. We had it in the dealer 5 times and each time they used the felt tape, but it never worked and it sounded horrible in the winter especially in the -20 F weather. We took a video of it and took it to the dealer and said we didn't want the car back until it was fixed. It took a week and a half, but they replaced the whole panoramic moonroof. No sound coming out now!
