Nav preparation not working

[By-Tor]

Hi folks, my 850 GSA came without Nav preparation. I bought the correct cradle and have fitted it myself along with the relocation bar above the TFT.
It powers up fine, but I can’t get it to switch between the TFT and Nav 6 to use the wonderwheel using the menu button.
I was advised that the dealer has to enable Nav prep. I did visit my dealer only to be told the cradle is an old model, when I bought it I was told it fits all current models.
My nav6 works fine in my pals 1250GS.
Anyone know exactly what is going on please?

 

[Pootler]

I have a similar set up on my 750 GS with the bar being fitted by BMW, I managed not to give them the Nav 5 when the fitted the bar and mine doesn't work from the wheel also.

I suspect there needs to be some element of installation that needs a BMW dealer to enable the connection between the wheel and the nav to make it work or one of these Can bus tools to do so.