Hi Stumpy,
I'm currently working on a little project to update the Trophy Radio system
( not ready to release details yet - waiting on external Company
to complete some testing and configuration ),
but while doing so I looked into the existing Radio Aerial connections,
and have a few thoughts to share with you that may be useful :
The aerial fitted to the front of the Trophy has a fly lead that runs across behind the Instrument panel,
where there is a centrally located standard DIN connector, the Fly-Lead has a male Plug that
connects into the Female socket of the Audio Harness - the connection is clipped into place
at the back of the Instrument Panel - quite easy to locate once you have removed the Instrument Pack
fascia panels ( See
davybull's HOW TO: Topic on fitting the Triumph Sat Nav mount ).
That connection may provide an opportunity for you to make your Bike to Bike connection.
possibly by splicing into the connector using some sort of "Splitter" cable ?
( The Image below shows an SMB Connector -
you'd need to get one with a connector for your specific Bike to Bike aerial ).
NOTE : I have NO idea how transmitting a signal on that connection might affect the Trophy Audio Unit
if it also remains connected - it's a VERY expensive radio to replace if it goes "POP" !
The other end of the Audio Harness Aerial Cable runs to the Audio Unit,
which is directly under the stowage box, under the Riders Seat - just 4 Torx screws to remove
and the stowage box lifts out to reveal the Audio Unit.


That may also provide an opportunity to connect to the existing Trophy aerial

You can probably feed a new cable into the Audio housing through the large rubber grommet
located on the left side of the bike.
Inside the Audio Unit Housing you should also see another cable with a yellow plug,
( "FAKRA" Type connector ? ) - which is not connected to anything.
This is used on the US / Canadian export models for the additional XM Satellite Radio antenna.
The other end of it is behind the left mirror pod clipped to the framework.
( You can see some Photo's of it in this Topic :
What's this connector ? )
You might be able to utilise that cable to fit an additional matched aerial for your Bike to Bike Comms
on the front left of the Trophy ( perhaps mirroring the original aerial on the front right ),
if you can find a suitable aerial mount ?
Cheers

