Discussion Starter · #1 ·
I have an 08 LTZ with the "premium" monsoon sound system. It sounds great with the exception of the rear speaker shelf. As most here know, it's made of plastic (lovely idea GM) and rattle terribly with anything more than minimal bass. Has anyone fixed this? I could use some pics on how to take the rear shelf apart as well as where I need to add padding/dynamat. I found a thread where someone had put dynamat throughout his entire Bu, but there weren't clear instructions on the rear shelf. Any help would be great!