Activation Navi

Hello people have a problem there and get almost mad. After days of crafting I have now finally built in the original Navi and stand now before the point to “share” it to the instrument cluster. According to my documents I have to choose on the instrument cluster the adaptation channel 56 and change there the pin code. However, this channel is not used according to my VAG-Com software!!! (It is not on the software because the unlocking of the GRA worked without problems.) The “friendly” has again n ull Hinweis and says that allegedly there is nothing in the repair guide. Does any advice? Help!!!!!!!!!!!!!!!!!!!!!!!!!!!