My Diad flies out of its slot, (not the correct holder) more than my radio, has ever flown out of its. It is secured with a bungy and does not block my vision, flat on the dash. If my radio is going to kill me in a wreck, I would already be dead. I think its a safety issue to not have one in the winter. I cannot hear mine in the back. And a few months back radios being too loud were the problem. It would be too loud when parked if I could hear it, then we would get complaints, well I wouldnt but some would. Ive got to find it in my contract book.