You want to DIY for to lower the cost... DJKOR did his interior, so he would know the true cost of the deadening... Dynamat would cost about 300 bucks for 2 doors from my recollection... If i were to do it, I would probably grab a tub of 5L bitumen paint, thick aluminium foil and DIY with all the seats out and the doors too... You can get non Dynamat mat from Jaycar costing about 20-30 bucks per sheet and each sheet covers about 3/4 of a door, just as good... coz i have it on my Yaris... (which I did the doors but not the floor... Cheers