I'm going to give that a go myself because I've yet to connect my Schuberth SC1 helmet comms successfully with my iPhone and Nav6/TFT. I carefully followed some lengthy instructions that I found on youtube and everything seemed to work initially but on my second ride I found I was getting constant interference from outside sources, traffic lights in particular and my music would cut in and out, very irritating. I was also getting constant speed zone and speed camera warning pings but I did manage to work out how to turn those off. The interference only started on the second ride, why I can't explain, but it was so annoying that I unpaired everything and simply connected my phone directly to my helmet. I still hear a slight 'crackle' through the helmet speakers when traffic lights are about to change, maybe that's just something to do with how the lights in Adelaide operate.
I would love to get everything functioning as it should, particularly the Nav verbal instructions, so I'll persevere until I get there!