When I turn the car off, it starts to make a weird buzzing electrical sound like "beee". After a while ( sometimes longer than normal ) it will go off, but sounds like a dying robot. I don't know anything about cars, so if you could please help me, I'd really appreciate it!
Thanks in advance!
1990 Pontiac Sunbird LE 2 door convertible automatic 126,877 miles
It's battery was replaced in April 2011, if that helps.