replacing the insulation behind the dash??

[2EachHisOwn]

So my i pulled the dash out of my truck and i am about to replace it but the insulation that is behind the dash got wet and really is making the whole truck stink. My question is should i try to replace it or should i just rip it out and put the dash back in or should i put some dynamat stuff in its place. I really don't know what to do so any help would be very appreciated.

[MeanGreen95]

Id take it out and dynamat it while you have the dash out and if you could find another insulation mat from the junkyard to go over the dynamat.