Rear Seat removal questions

[Gutling]

I just within last two weeks finished sound dampening my 07 hatchback. I removed full interior, headliner included, and did a layer of butyl tar and then some ccf on top. It made a huge difference, its more muted inside, doors close nicer, all panels feel nicer (no more ting noise). I did spare tire area and rear hatch, shock towers real well. There is almost no dampening of any kind from the factory, so almost anything will help. I still have rear seat back out, its getting recovered at upholstry shop, and sound is 1000% nicer inside.