For example, are you looking for:
* The main harness?: This is usually bundled and runs along the firewall, under the dashboard, and along the vehicle's frame rails. It's difficult to pinpoint one exact location.
* A harness for a specific component?: (e.g., headlights, engine, radio). Knowing the component will help narrow down the search. Consult a wiring diagram for that specific system.
* A damaged section of harness?: This requires tracing the problem from the malfunctioning component.
To help me help you, please specify:
* What are you trying to do? (e.g., replace a fuse, install an accessory, troubleshoot a problem)
* What specific component is involved? (e.g., headlights, radio, engine)
* What year is your Chrysler 300? (Wiring diagrams vary by year)
A repair manual specific to your Chrysler 300's year will have detailed wiring diagrams showing the locations of various harnesses and components. This is the best resource for finding what you need.