Sadly, there isn't a straightforward way to enable Android Auto on the BYD Song L at the moment. Headunit Reloaded is a great option, but the trial version's limitations can be frustrating. You might want to keep an eye on updates from the community or the manufacturer. Sometimes, new firmware updates can unlock additional features or compatibility with Android Auto.
In the meantime, you could try exploring other options like wireless CarPlay or using your phone's screen mirroring feature.
