I have been using a Rider 2 with Scala Pro Rider headset without problems until now that I have had a communications system fitted bike to bike (Autocom Pro-duo ) which has it's own bluetooth. I can get the Tom tom to recognise the new set up but it does not seem to store this in it's memory and every time I start up engine the tom tom is searching for the Scala headset and I have to re-establish the link to the new bluetooth. How can I fix this?