Hey guys, ever since I got my new 2018 Si Coupe (Canadian version) last year I have been having the subwoofer rattle issues as I'm sure you all heard of. I cannot find anything on how to fix this since there aren't many Canadian Si users on here with the same problem. It seems to have gotten worse over time. I tried putting some memory foam where the subwoofer is but no dice - guess that fix is just for the 4dr. Any recommendations of things to try? Thank you!