i just took the carpet out and left it as it was.
it wasnt really that bad, so i didnt have to do much.
sometimes with some carpets, they apply a sticky mastic type gluey sound deadening stuff to stick it all down. but not in my vit.
if anything, i'm just going to respray the floor with that rhino liner, or rockerguard, or tar, or something like that. i'm just too lazy.