This is a very simple project to improve a radio!
Step 1: What You Need
1-radio with FM input
2-antenna (I got mine from RadioShack for about $3)
3-soldering iron with solder (352' C)
5-long wire with FM output
Step 2: Strip of the End of the Wire That Doesn't Have the FM Radio Adapter
Easy as eating raspberry pie!
Step 3: Soldering
Solder the stripped end of the wire to the little pin in the antenna... It's easier than it looks.
Step 4: (Optional) (Recommended) Electric Tape
Tape the soldered wire down so that you don't have any explosions :)