I installed the following system on my 2018 R1200RT-LC:
I installed a MotoChello Speaker Bridge, which lets you select if the audio from the radio goes to the speakers or to an audio cable. I have this cable connected to a Sena SM10, which connects by Bluetooth to my Sena 20S.
The Sena SM10 can connect to 2 different Sena Bluetooth headsets at the same time.
My GPS Navigator 6 connects, as a phone, directly to my Sena 20S. I have my phone connected to the Nav 6 by Bluetooth.
It has priority over the SM10, which means that the GPS will over ride the signal from the SM10.
If you use a SR10 for your CB radio, it will have priority over the SM10. But the GPS will have top priority.
You can pair up your phone instead of the GPS, if you have no need for directions from the GPS.
And of course if you don't need either GPS directions or a phone linkup, your SR10 will be top priority over your music (SM10).
Another benefit of using the Speaker Bridge, is that I can control the volume of the radio with the WonderWheel and I can get full stereo sound.
The Bluetooth software/hardware installed on the bike is a older version, that doesn't transmit good sound.
Let me know if you need more info.
Bernie,
I own a 2016 RTW, and have a Shoei Neotec II with Sena SRL2.
Do your comments apply equally to an SRL2, as opposed to your 20S?
I care about Bluetooth to the phone and Nav, but not about the radio (SRL2 has a better radio built-in IMHO)
Andres