I am trying to replace the fender amp on my NAR 2021 gti which has the MIB3 with an aftermarket amp and recoding to eliminate the fender and instead use the audio out behind the head unit in the glove box. None of the settings people have listed for past head units seem to be present and I have seen some unique coding for people in europe with transporters and MIB3 where they replaced speakers. Have found nothing for amp replacement. Hoping someone may have done this on a mk8 gti or golf r and can guide me on the correct settings. I want to keep the fader control too and think I found that setting on YouTube.