Many cars don't have sound system (Dynaudio). Me too. Seems like the 4 channel to 8 speaker cannot play front channel and rear channel seperated.
Is it possible to enable MIB2 High playing 5.1 channel surround FLAC/Wav file without sound system (Dynaudio)?
I noticed that the quadlock connector description has 6 channel output on this web page.
6 channel output description

Thanks for bring this amazing tool to everyone!