For the record, my last Explorer had 4 12's in it and hit a highest of 160.8db in Outlaw. In DB drags I would bring 2 friends with me. 1 to sit on the power sunroof (which would pop open a good 2") and 1 guy on each side of the truck pushing the corners of the doors closed because they would flex. The tailgate had almost 3 lbs of Dynamat on the license plate alone, 4 layers of Dymat all over the inside of the tailgate metal, and 4 layers of Dynamat all through all of the sheet metal we could get to from inside the truck. Tapping that thing from the outside of any panel or door sounds like a brick, not a metal car. All in all the truck probably had at least 200lbs of Dynamat on it. The rear glass was reinforced the whole way around with 2 layers or 1/4 inch thick RVG tape. The only way to close that glass was to put your weight into it and hope the latch held. And even with all of that, the tailgate and rear glass still flexed when the amps were up at DB drag level. Ask Frankie, he heard that truck numerous times when the amps were set at every day driving levels, and even that made you sick to your stomach. If you were sitting in the front seeat of the truck when the amps were at cruising level, and the windows were closed, your hair would wave around with every bass note. Just, FYI.
This Explorer is just a nice sounding grocery-getter.