Unfortunately
I had assumed that the BMW headset would work with the Rider the dealer (Lind - Norwich, Philip

) was not asked about compatibility! It's only after I've bought the headset that I find it won't connect and believe me I've tried. All of my other Bluetooth equipment, 'phones, headsets, computers etc etc connect to each other with no problems, it's only Tom Tom that has a problem which points to a very narrow (or selective) spec. for the design of their software.