So after removing the interior on the passenger door, i found that there is a plastic sheet that covers everything behind that, and is somewhat glued around the edges of the door, basically sort of molded to the form of the door, with the proper holes where the screws go in. Question is, does that plastic need to be kept or can i swap that out with dynamat or just leave it off? Also, what is the best way to take of the interior covering on the hatch, to gain access to the speakers?

 

i just took mine out and it made no dofference to me

 

Ive pulled mine off like literally 6 times in the past 3 weeks to fix a door lock that wont stop breaking..Ive pulled that off and put it back on ever time..still sticks and ive had no problems with it. just pull it off, itll stick back up

 

I once heard that that plastic is better than the dynamat with sound and an insulant but as for myself idk that's only way I heard