I have a driver Charger 500 that sat for many years and is heavily perfumed by mouse piss. Really, I have nearly no sense of smell but I can hardly stand it. I replaced the carpets, cleaned the nests out of the seats, and scrubbed down the floor pan. The worst of it seems to be in the headliner. It's so bad that the entire garage reeks! This car is in line for a restoration, but it won't be until others in front of it are finished... (several years). In the meantime, I would like to keep the mouse piss car intact as a driver and be able to enjoy it...... meaning: I do not want to rip out the headliner until the car is painted and a new one goes in.
I would live to hear of any solutions that people have been used to neutralize that smell!