I have been searching the forum but haven't found a clear resolution.

When upgrading from a Symphony II to RNS-E is the Kufatec Bluetooth harness all that is needed? As I understand it, if the navigation head unit was already installed the Bluetooth harness would take the place of the adapter harness plugged in the back of the RNS-E. does a Bose system have any bearing on the Bluetooth harness?

I emailed Kufatec as well but have yet to hear back.

Thank you.