Where can I find wiring diagram for 1973 Mercedes 450 sl?

You can find the wiring diagram for the 1973 Mercedes 450 SL in the vehicle's service manual, which can often be purchased online or found at libraries. Additionally, websites like Mercedes-Benz forums, classic car restoration sites, and online marketplaces may offer downloadable PDFs or printed manuals. Another option is to check with specialized auto parts stores or websites dedicated to classic car parts, as they may carry wiring diagrams as well.