Here's a pic of my little $14 car stereo project. Right now I have the speakers sitting on the shelf just for the picture but will hang them on the wall about 6 feet apart for better separation. In the upper left of the pic you can see the antenna which I mounted using a funnel I had laying around. I only have it there so it could be in the picture but will move it to higher on the wall for (hopefully) better reception.
In the pic it's playing music from a local FM station, I also have a 16GB usb thumb drive full of my favorite tunes inserted into the front of the unit (right side). You can't see it very well because it's tiny, only the size of the very tip of my thumb.