WINAMP Nullsoft ShoutCast Source won't see my microphone + question

[Tomboeg]

Hello

I've got a radio on winamp. I can host it anywhere and it works great. The music runs on INPUT > Winamp(recommended)

But how do i talk through my songs like a DJ, and the other options is No availble capture device found.

So how can i play music, and talk through it with my build-in microhpone(laptop)

Thanks