It depends what you mean by "mount" !
If you are buying a new Garmin Zumo XT it is supplied with a Cradle Mount,
designed for permanent fitting onto a Bracket, and also a Suction type mount
designed for use on the inside of a car windscreen.
There are also a few accessories in the box allowing various "RAM" mounting options.
For attaching to the Trophy, there is a dedicated CNC Machined bracket
that fits in the centre of the upper Instrument Panel in place of the XM antenna,
which gets re-positioned onto the the Green coloured plate
of the new Sat Nav bracket in this image :

The Triumph Part number is A9828011,
though you may need to search eBay and Amazon etc
as many Dealers seem to have no stock.
The front Cockpit Instrument Panels have to be dismantled to fit it,
which is not difficult, but is a bit time consuming, especially the first time !
This Topic explains how to remove them :
HOW TO : Remove the Instrument PanelThe instructions for the Sat Nav Bracket installation can be downloaded from here :
Triumph Instructions.comJust enter the above Part Number, Click "SEARCH" then click the Flag
representing your language to download the instructions to your computer.
There's also a useful Topic with Photo's of the Bracket installation,
and dedicated Sat Nav Power "clean" Power socket here :
HOW TO: Fitting Triumph Sat Nav Mount & Zumo 660.That should do you to be going on with !
Ask away if there's anything else you need to know !

Cheers

