I want to inspect some HTTPS calls / write some test for my android auto app, and would like to use Charles Web Proxy to do this.

I am able to connect to the proxy using the Emulator’s extended controls as normal, and I can drag and drop (or adb push) the PEM file to the emulator as well. The normal route of downloading from charlesproxy.com/getssl isn’t an options as the auto emulator doesn’t have a browser, though I could install one I guess.

Anyway, the issue becomes the settings app on Android Auto OS. It does not have the Security & Privacy section to choose a cert to install. It is definitely possible though, as I can use something like HTTP Toolkit to see unencrypted HTTPS calls.

Unfortunately, Charles is our only current integrated tool for automated testing, so I do not have the time to figure out a way to automate tests with HTTP Toolkit.

I attempted to install the cert with various ADB commands, but those proved unsuccessful, due to permission errors, Android OS issues, etc.