I have a 2018 Prius Two. I would like to sound deaden the cabin. Primarily focusing on the doors and trunk space. I am leaning towards getting the KilMat 80mil or 100 mil pads but do not know how many to order. Can anyone give me advice on the amount I should buy to cover the front and rear doors as well as the trunk space?. I plan to put some behind the factory woofers too in the hopes that it will allow me to not need to replace them. I currently have to crank the volume to ~30+/- to hear podcasts.
