I just replaced all 4 in my '00 CSVT. Experienced the same problem. To resolve, I bought foam (6mm thick) and cut out a "gasket" for the speaker to mount into. It was fast, cheap, and worked well. I got the foam at a craft store. I think you can get soemthing like it at Wal-Mart... maybe?? It's the size of paper, but thicker of course. G/L