3g5035820

Evening, my upgrade is now complete so anyone interested in my Discover Media system just removed from my 2021 T6.1 Highline, perfect working order it was a £1400 option, Apple CarPlay, Navigation etc etc, only selling as I’ve upgraded to Alpine Halo. £600 or open to offers, must go, I’m in Somerset

Has anyone been able to activate the rear fade on media unit 3G5035820, my speakers worked without any coding, I’ve used the latest vcds and followed all the videos but I’m not getting the drop down list in bit 4 to change from 4 to 6 speakers, any help would be much appreciated