I have a 98 Subaru Legacy 2.5GT LTD Sedan with 2 Polk/Momo MM120's in the trunk in a Virtua Technologies Box. It sounds really good on the inside but My car has a Factory Spoiler and on the outside when it is bumpin pretty good you can hear a good rattle coming from the trunk/spoiler area. I Dynamated the trunk but it still rattles. How can i make it a tighter seal on the trunk or spoiler to get it to stop rattling. Thank you.