Per his previous post...

Greetings. I recently purchased an SRT Roadster with 16k miles on it from its original owner, who lives a few miles from me. He had taken excellent care of the car and the only item needing service was the cabin air filter, which was still the factory original. I have replaced many of these on several different vehicles in the past, and I can say from experience that it is typically an easy job, and the SRT proved no different.