Problem with radio

Hi all. First sorry for my english, i am from Russia
I have a problem with radio, i see on youtube where man type radio link and in his bus he have player, he press button and playing music
I don't have the player in my bus, please help!
Here is screnshoot with my bus
Click

You have to select the SD84 or SD85, since they are the only buses with the radio.

Thx! Now my question is how to play something? I'm put in radio link this http://apps.104.6rtl.com/mediaservice/webstream/rtl_mrp.html and click play, radio don't work =(
Then i tryed to put in radio link m3u file and click to play, and i have opened this files in winamp or AIMP3. Help!

The link you provided has a streaming music player, which doesn't work in OMSI. You have to use a website with an integrated music player. One example is Music Choice (Microsoft Silverlight is required for music-listening), which I use their links to listen to music.