I'm trying to set my long term plan for the trunk in my 67 convertible. Right now, I only have the well liner between the trunk and the passenger compartment. I want to install a steel trunk divider with some dynomat, both for noise abatement and as a potential firebreak in the event of a rear-end collision. However, I'd also like to have a subwoofer. What do you all think are the best options and/or compromises?