There is a small amount of space between the window when rolled down and the speaker hole. My speaker didn't touch the sheetmetal with the window down. I built a 3/4" circular ring out of MDF wood, used the bolt holes already in place (had to buy some longer bolts), and then screwed the speaker to the MDF baffle. I had about a half inch between the speaker and the window.XterraVersa wrote:Why bother with adapters? Get a drill & drill new holes. Use silicone sealant to glue the speaker to the door to eliminate the speaker to sheetmetal rattle.