I have a 97 jimmy 2 door. I'm doing an audio build right now with 6 incriminator audio I10's. The enclosure will be subs up/port back. 6 cu ft after displacements. My question is what does my vehicles cabin peak frequency? This is a daily setup that's also meter friendly. I want to move a lot of air down low and have a lot of SPL. Was thinking of tuning around 36hz via a kerf port. Any input is much appreciated.