Damn mouse pissed in my car
 

Found out what the awful smell was in my car.
. A mouse built a nest behind the spare tire.
How do I get rid of the smell? I have tried everything...

There is specific urine cleaners for carpets. Sure it isn't in the HVAC system and not just the trunk?

We have an elderly dog and we use Nature's Miracle. They have a heavy duty version that we get at Petsmart.

First, be 100% sure that all of the droppings and mess are completely gone. If there is anything left somewhere else in the car, you'll continually smell that.

I use Febreze. It worked on cat piss (left the windows open one night) and human barf (someone had the flu) really well so I'd think that it should work on mouse pee too. Once you have it all cleaned out, wash the carpet with soap as well as you can, let dry, then spray. You may have to spray it daily for 2-3 days to get it completely gone.