Hi Gordon3xBBB,
"New" Trophy's are usually supplied with an extra lock barrel,
keyed to the original Ignition key,
ready for installation if and when a Top Box is bought and fitted.
The lock barrel is "usually" inside the tool pouch underneath the Pillion Seat.
I don't know for sure, but would be surprised if it were
not possible,
to order another barrel keyed to your original keys,
which could then be used to replace the one fitted in your Top Box
IF you can get the old one out without damaging the box !
Cheers

