Zumo User Forums

I had a similar issue, In the end i upgraded the Sena to a 30k, However that is not without issues. You can do Nav 6 to Sena as headset (bluutooth ) Phone to nav 6 as phone It works, but you loose phone voice commands once the nav is switched off This method worked better Nav 6 to Sena as bluetooth ...

I spotted this on another forum, whilst searching for a nav6 fix

A hack to use the Honda handlebar remote with the 550

Had i not sold my 550 i'd be having a go at this

https://www.st-owners.com/forums/thread ... ut.131637/

hth
Santa