a good place is junk yards but always get 2 in case one gets corroded and the tone is low. also their may be more then one number ( i have a red color one instead of black in my 87) location is under dash ,right of steering wheel .now bend your arm like you are touching your shoulder and it will be just under the rear defroster switch and right hand remote mirror . use a flat screw driver or pick to lift the locking tab up on top of it and remove your buzzer if you have one. 0-60 PERFORMANCE is a great place to get these if not . remember door chime has 7 pins,6 is the buzzer .