Hi bigcountry

First off, you need to make sure you get the US Version of the Triumph GPS mount,
as this also includes provision for fixing the XM Satellite antenna onto it,
which has to be repositioned onto it when the bracket is fitted.
( The UK version of the bracket doesn't have the XM antenna mount ).
The Garmin cradle that is provided with a new 595LM,
fixes directly onto the Triumph bracket using 4 "standard" spaced holes.
The cradle has a wiring loom for connection of Power, which should be connected to the dedicated
"clean" power supply ( to reduce any potential interference ), that is provided on the Trophy,
located behind and below the left mirror pod - usually taped together with other wiring on the frame.
There is a Triumph connection part ( A9938122 ) with a plug on one end to plug straight into
that dedicated Power supply socket, the other end of it has two bare wires
to connect to your Sat Nav power wires ( "+" and "-" ).
( There is an in-line fuse on the positive wire, and it is a good idea to route this into the back
of the left hand mirror pod - for easy access if the fuse should ever need to be replaced ! )
The Garmin 595LM has an Audio Output cable, with a female 3.5mm jack socket -
this can be connected to the Trophy Audio "NAV" input, which is a 3.5mm male jack plug
located in the same place as the dedicated Power Supply ( Sometimes taped up and hard to find ! ).
There's an excellent "HOW TO" guide for fitting the bracket, and wiring everything up here :
HOW TO: Fitting Triumph Sat Nav Mount & Zumo 660Cheers

