Thanks for all the tips fellas. This weekend it will be in the '60's so i'm going to air it out as long as i can, as well as going over the plastic and vinyl pieces with some good cleaner and mold remover,
if that doesn't do it, i'll take it to the local detail shop and se what they recommend.

The carpet is clean, and there's nothing under the front seat. I'm going to take the bottom of the rear seat out, maybe something is under there.