I had my 1987 coupe out for the first time since winter and when I got home and parked the car I could hear a buzzing or humming noise from above and behind the drivers side rear tire. I got under the car and it appears to be some sort of module for someting. It was wires connected to it so I know it is electrical. Anyone know what this might be? The only way to stop it was to disconnect the battery. I left it off overnight and tried it in the morning but as soon as I hooked up the battery I got the same noise. Any help would be great.