For $20 get you one of these....

http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F002%5F001%5F019%5F005&product%5Fid=12%2D1999

...or one of these...

http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F002%5F001%5F021%5F002&product%5Fid=12%2D2052

You may have to play with the empeg volume to make sure you are not clipping.

With both of these you should be able to connect to about any audio system.