my old 2003 Silverado 1500 had a cabin filter, weird that Dodge still hasnt seen fit to add one to the Ram. I really wish my truck had some way of filtering cabin air. Especially after having my big drooling dog ride around in the truck for a while, it has become afflicted with "doggy odor". Friend of mine has a 2009 Mega and his HVAC system makes a weird, moldy musty odor that smells like old gym socks. No dog to blame that on, so I really am curious if other people have noticed anything like this as well. What are those Geno's filters you were talking about?