What kind of stock stereo system does a 2001 dodge stratus have?

The 2001 Dodge Stratus came with a variety of stock stereo systems depending on the trim level and optional packages. There wasn't one single standard system. They generally ranged from basic AM/FM cassette players to those with AM/FM/CD players. Some higher trim levels might have had slightly better sound quality speakers, but it's not a standardized, easily named system like some manufacturers did. You'd need to check the original owner's manual or the vehicle's sticker (if still present) for precise details on the specific stereo installed in a particular Stratus.