Probably a silly question or I would have found on already I guess but I bought a TomTom Rider GPS last year and I'm thinking of changing bike to something which already has a nice Garmin cradle set up. I'm thinking that simply in terms of charging this must be a simple conversion but I've not found any adapters on line. Does anyone know if anyone supplies gismos to connect a TomTom navvy into a Garmin cradle ?