@Laughing Man: i got in contact with the people at DC101 as i am not allowed to listen to their stream as i live outside of the US. I hope to get a response from them soon. About the 99.5: i found a couple of websites with that radio-frequency.
Can you tell me a link of the station that you mean?

@johenkel: unfortunately Flash can not implement Real streams at the moment
I seeked if RadioEins has a mp3 stream somewhere, but could not find one.
Or maybe you know of one somewhere?

Thanks to you both until now!