Listening to radio on SGS without having to use earphones

Hello

Ive got a Samsuns Galaxy S, with Froyo.
I have no problems listening ( and watching of course ) youtube videos on my phone, without having to use earphones.
But, everytime i want to listen to radio, with the inbuild radio app, i just get told to plug in my earphones.  That annoyes me.
I thought that if i enabled speakers on the phone, by hitting, the speaker-button on the top right on the screen, when starting the radio-app, i got rid of the "error message", but no.
Is there no way listening to radio on the phone, just by using the implemented speakers ?
Hopefully some of you can help me out with this.
Would appreciate it

Best regards

Bauta

But, shouldnt it be possible while listeing to internet radio stations ? Ive got an option on the app listeling to internet radio stations. Doesnt the radio then use my wifi connection to stream to music? I get the same problem yesterday, while trying this.

Good tip It worked, thx