Be patient. A viable solution will likely present itself here. It seems someone will find a dealer and help a bunch of people, then that source will dry up just to have another spring up a month later… it’s a cycle I’ve noticed on here since I got into Harris radios. For instance, the member here who helped me last year can no longer help others due to some change in their circumstances.
Yes, you can could call a dealer and submit proof that you operate a system that requires wideband, but I have a feeling that the winds of wideband will blow here once again…
Good luck!
-B