I know the exact part and location of the noice because when I had my door apart I could hold the window regulator and it wouldn’t make any buzzing. I just don’t know how to prevent it from vibrating because of the design and it’s a pretty tight squeeze between the door panelThey foamed mine but I think it’s coming back. Local company quoted 600 to dyno all the doors. I hear it on the right side door also since they fixed it on the left
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