Just posting this as may be of help to others. I have a Nav5 Garmin on my old GS1200. Paired to my equally old Interphone F5MC comms system. I wanted to upgrade my comms system and helmet (C3 Pro) so purchased the Interphone U6R. It didn't work with my Nav5. Music from the Nav5 kept buffering, dropped out completely etc etc. So after a week of trying all sorts of things we gave up and I returned it to Infinity where I bought it from. Garmin have stopped supporting the Nav5 and Interphone are utterly useless dealing with directly. Infinity staff have been brilliant but couldn't get it too play ball. This was a few months ago. Forward to today and I now have a new AGV Tour Modular and Cardo system. Again, music from the Nav5 buffers to the Cardo. So if anyone buys a new comms system; MESH or otherwise and has a Nav5 you may experience issues. It's the Nav, not the comms systems. it took me a few moths and a lot of pain to come to this conclusion. If it helps anyone else then excellent. Music from my Iphone 12 to either system was not an issue.
