That's crazy! They weren't real Amish then.
I know some Menonite people, they have cars but no radio in the car. No TV in the home. No Christmas tree or presents at Christmas.
I'm sure they were real Amish, they were probably teens. Rumspringa.
One of the reasons (besides that they live in and interact with the modern world) the Amish are not interested in and fascinated by the English is because they all have the chance to experience it all for themselves.
Before they commit to their church and their lives as old order Amish, there's a period of Rumspringa, in which kids can do whatever. They often have cell phones, ipods, get cars, wear jeans and other 'regular' clothes sometimes when they go out with friends or out in town, drink, smoke, etc. They can do all this and still be part of their community. It's a time, basically, in which they're supposed to see what the outside world is like - like a gap year - before they settle down to their real lives.
When they decide to commit to the community and church (which the great majority do), they're then baptised and forsake the modern conveniences and such. After that, you won't see them with those things, then it's a sin, but before they've commited to the church's rules, it's part of the process of choosing what they want for their lives.
Unlike some other religions, the Amish baptise at adulthood, as a marker of commitment to and membership in the church. Like a Catholic confirmation, not like a Catholic baptism.