Welcome!
I have a 2019 civic that comes with garmin navigation. This time it's not about installing maps for Garmin, but installing other navigation programs such as iGO ...
The station has android 4.2.2 and I have honda hack installed, which is root.
There is no major problem with installing the application, but there is a problem with the sound. For example: listening to music from USB - the message from iGO switches the audio source from USB to audio apps ... This is what happens with any other application excluding yanosik version 3.3.3.6.
I will add that the factory garmin does not switch the sound source. Is it possible to improve it with other applications or edit e.g. iGO for audio?