I have a 2010 Charger and I've only had it since July, but the air in it already stinks. I take good care of it and vacuum, clean and polish every 2-3 weeks. I don't understand why it smells, but I'm pretty sure it's the air filter that is smelly. Every time I turn on the car it stinks for a few minutes then goes away. and it's the kind of smell you can't ignore... How do I get rid of the problem?