Yes the front bearing is a complete hub assembly. I'd call around and see what you can find. I did the hub (bought two but only did the one that was bad at the time) on my '02 several years ago. When I did the price for that hub varied wildly from Ford at nearly $700 (going from memory) to the...
Do some Google searches (may actually be here that I found the information) on your year and body control module or vehicle security module. I had similar symptoms on my '02 and that's what it was.
In my case however there were a few more signs of something not right other than the radio not...
That would be correct. A turbo diesel pushes air into the engine unlike a naturally aspirated one pulls. Thus there isn't the traditional vacuum for a vacuum brake booster. The power steering pump provides both power assist to the steering and brake systems.