2006 Hemi RAM 2wd. The good news is I already know what the problem is. Up above the blower motor there is a dust filter that came loose and was vibrating like a son of a gun. Went to autozone and they said that part doesn't exsist. Have any idea how to get a new one? My old one came out in pieces and Im afraid the new one will be a pain to get back in.

 

hmmm dealer part
you will probably have to pull your dash out

you might try searching google for heater-treater or somthing to that effect. i know they make supereasy kits for other vehicles, might be worth a try