Hi Don,
The rectangular shaped Sat Nav cradle with the wires coming out of it fits onto the Triumph Sat Nav bracket.
( You already have the details of the bracket installation :
Triumph Trophy GPS Mount )
The front of the bike has to be dismantled quite extensively to fit the Bracket ( so I entrusted that task to my Dealer ).
The wires coming from the Garmin Sat Nav cradle are Power, Audio Out, and external Microphone.
The microphone connection is not used.
The wires from the Garmin cradle are routed down and through the Triumph GPS Bracket,
so it is best to get both installed at the same time.The Power and Audio wirees are connected to a dedicated power socket and audio plug,
which are both located behind and elow the left hand mirror pod.
The power connection uses a Triumph accessory connector kit, so it can plug straight in,
and I assume this is the part you are still waiting for.
Some Forum members have managed to access the Power and Audio connections
by just dismantiling the Mirror pod assembly, but this can be quite fiddly,
and you may find it easier to remove the complete side fairing -
With the fairing off, you can then also check other stuff like coolant hose clamps
which some members have found to be loose causing occasional leaks

Instructions on removing the fairing if you need them are over in the
"How to Remove Fairing ...... " thread,
and more information with Photo's showing the location of the Power and Audio connections are here :
Power Connection for GPSAs mentioned previously elsewhere, it is a good idea to tape up the Audio connection once plugged in,
so it can never shake loose, and route the Power wire In-Line fuse into the left hand mirror pod,
so the fuse can easily be accessed if it should ever "blow", rather than
leaving it taped to the Main harness - buried away behnd the fairing and inaccessible !
Regards,
