Where can I find a wiring diagram for a 2009 Harley Davidson Fat Boy?

You can find a wiring diagram for a 2009 Harley Davidson Fat Boy in the service manual specific to that model, which can be purchased from Harley-Davidson dealerships or online retailers. Additionally, motorcycle repair manuals such as those from Clymer or Haynes may include wiring diagrams. Online forums and Harley-Davidson enthusiast websites may also have shared resources or user-submitted diagrams.