I just purchased a 72 Trans Am. White/Auto. When I went to look at it, the guy had the battery disconnected (Ground). When he hooked up the ground, a buzzing and pretty loud alarm sounds. On as long as the battery is hooked up. It feels and sounds like it's coming from the area of the brake booster. He stated that he drained and refilled the tranny, and after that, the alarm keeps sounding. Sounds strange to me, but I guess it's possible. As well, the shift cable is messed up. Probably a complete failure of the mechanism. Won't go into drive. Reverse is all the way back where drive should be. Thinking perhaps its a position sensor alarm or something like that. Haven't had a chance to investigate it yet, but am hoping for ideas to perhaps same me some time. Thanks!