I have the Ryder 2 Second edition and recently when going one the road my TomTom turns itself off for like 1/2 a second and then it comes back on. I have the cradle that I purchased with the unit. It just started doing this. I have used a contact cleaner on the points in cradle and TomTom. Checked my wiring and it appears to be ok. It does it on smooth road as well as bumpy. Any suggestions?