Odor from Air Vents on 2005 Chevrolet Uplander

We had the deoderizor service from Chevy with no significant change. Is there anyway to vacuum out the fresh air vent lines to remove dead mouse remains?
Our fabreeze bill is getting up there.

Asked by for the 2005 Chevrolet Uplander
nope, the only other answer is to remove the heater box and physically remove the dead rodent.

Thanks for the suggestion. I'll check it out.
replace your cabin air filters located in your glove box. Once inside you'll noticed a door pull it off, behind it is an other door just open this one. you'll be surprised
Thank you and what a surprise. Our dealer,
Fitzgerald in Annapolis MD conveniently failed to do this service when they did the GM deodorizing service.
You are a good sam.