Where is the cab air filter on a 2006 Dodge Ram 1500?

The cabin air filter on a 2006 Dodge Ram 1500 is located behind the glove box. You'll need to remove or at least significantly lower the glove box to access it. There's usually a few screws or clips holding it in place. Consult your owner's manual for specific instructions as the process can vary slightly depending on trim level and options.