Need to mount sat nav at 'eye level' above clocks on F800GS. What bracket do I need?

[DeanoBeano]

As the heading states really. I need to mount my TomTom sat nav at 'eye level' above clocks on F800GS. I don't want to have to keep looking down at the handlebars to see the map so what it mounted just above the clocks and behind the screen. What bracket do I need please? Any advice appreciated