Pairing Sena SR10 with Phone, GPS and 50s Headset
This has been a challenge to get started, but it's incredible what can be achieved when you follow the instructions. Might have needed reading a couple of times, but hey, got there in the end. 😜

The basic concept that worked was not to use the SR10 for its intended purpose and instead to use it exclusively for the wired UHF connection, and nothing else.

Here's the Pairing Process;
It is best to clear all current Bluetooth pairs to get started with a blank canvas. (50s Headset Configuration Setting, press and hold Jog for 10s, turn right to hear "Delete All Pairings", Phone Button to select)
For those of us who put their mics in the wrong position, have you considered a refurbishment/relocation kit? Dead cat or foam replacement?