Note: I read the long piezo buzzer thread already.... So I got a radio shack piezo buzzer. I cracked it open and the piezo element has 3 single strand unmarked leads, attached to a small circut board which has red and black leads coming from it. I asume that I am not going to be using the circut board, but... How do I know which of the 3 leads to use where? Did I buy the wrong buzzer? If So, which one should I have bought? Please help!