It was not built with one.
No, a 2005 Chrysler Sebring does not have a cabin filter.
Yes.
If equipped with cabin filter it is located under the dash on the passenger side. There is a cover to slide to the rear, and the filter pulls out.
It is part of the fuel pump inside the fuel tank.
It is part of the fuel pump module in the fuel tank.
No, only split zone systems.
Under the Glove Box.
No, only the top of the line model.
There is a youtube video which shows it clearly. More involved than I thought but looks doable.
If equipped it is accessible from under the dash on the passenger side.
no