Yeah same here. Just got my fp6 with e/os preinstalled from fairphone and used the instruction to install How to setup Android Auto with /e/OS?
Same issue you are having
I am having the same issue as well on a Fairphone 5, A15, 3.1.1. It worked fine before on A13, 3.0.4, bur after updating, it all broke. Would love to have this fixed. Tried multiple things, like clearing the cache, re-downloading, restarting, but no luck so far.
Same issue for me on Pixel 9, worked fine on Pixel 7. I installed AA as a system app and same error. At this point I’m thinking it is a e/os issue. Has anyone tried downgrading e/os versions?
I am experiencing the same issue here with my FP5. I was using the build shipped with my phone that I bought from Murena, so 3.0.4-t. Yesterday I had the update (from the update manager, not manual) to 3.2-a15 and Android Auto is not working anymore.
Maybe it has something to do with the Android version from /e/os ?