I have a tom tom one. This is a standard model and this means it only comes with a car mount and is not water proof …
Is there any way that I can attach it to the handle bars of my scoot ( so that it can be removed as well
) considering that the actual “bar” is hidden by the “dashboard”? ( any mount would have to attach to the mirror stems or the left grip)
Secondly, is there any point as it is not water proof? I don’t have the money for a new tomtom Rider 
If it is the original version of the TT ONE put it in your pocket and wear headphones to hear the instructions. Later versions lack the audio socket.
As for mounting it - check out the mounting companies on the internet they have all sorts of things that would work on mirror stems etc. As for waterproof - some people have had success wrapping £50 Satnavs in cling film.
what i thought was a headphone socket isn’t its for a traffic device :blink:, i guess it is a newer model. I can hear when my phone rings from my pocket, i think i will see if i can hear the speaker.
Nice idea about the cling film though the tomtom is not strictly mine so cannot afford to brake it 
If it has the traffic socket it is a much later model v3 or later I think. Only v1 had the headphone socket.
put it in a freezer bag that keep it dry, does mine 