hello, I am new to this forum and starting a new project and looking for some help. I have a 2016 Silverado Chevy Crew cab and this is my current set up i have. I purchased i Subthump box that is made to drop right under the back seat and i put in 2 SunDown sd-3 10d4 subs in that box and i am powering them with a Sundown Sae 1100.5 amp. Last week i purchased 2 Sundown x8 sub woofers that i want to use instead. Now i have some enclosure knowledge when it comes to sealed enclosures but not vented ones and these require a vented enclosure. So i am hoping to learn more through this forum and accomplish building this enclosure to go in my truck. i am sure some in the forum have similar set up like this where i can get some ideas . Any feedback is greatly appreciated.