There are low powered FM transmitters you can get for your car
FM transmitter plugs into cigarette lighter for power
iPod connects to FM transmitter via AUX cord
You tune your cars radio to whatever frequency the transmitter is set to, and it plays whatever your iPod is playing
I would assume the radiographer working in the ER sees a lot more foreign-body-up-the-butt cases than the one working in a cardiologists office.
Also I've never had a specialist take my dental X-rays, it's always the hygienist or dentist