I have a 2007 Nissan Murano. When I first get into my car after it is sitting the smell of garbage is overwhelming! Once I start to drive it, the smell begins to disappear. The longer the car is sitting turned off the stronger the smell when I get into it. We have searched the vehicle inside and out for signs of food, although the car is extremely clean. We have also searched for reminants of a dead animal as well as moisture but have found nothing. Can anyone provide any suggestions of where to look next?