Multiecuscan

Hi all, 2016 vehicle. Retrofit 7” nav unconnect and Magnetti cluster. Everything perfect just one thing…. if i switch the nav replication for the cluster to be active in the mes software, it refuses and just goes back to this option being deactivated. Can someone advise of a byte change somewhere like the carplay hack we all know about?
It’s cool seeing the map on the cluster as well.
Help?