Curiosity didn't kill a cat trapped in the trunk of a Mercedes-Benz for 10 days, but it nearly drove him to catatonia. Kitty, the 11-year-old orange cat, apparently jumped into the Mercedes when it was being serviced Jan. 17 at his owner's shop, Richie's Auto Radio. The proprietor, Richard P. D'Auteuil, placed ads in the newspaper, made daily calls to the Animal Rescue League and tried to contact customers who visited his store on that day. ``The only customer I didn't contact was the only one I didn't have a slip for,'' the owner of the Mercedes, D'Auteuil said. The Mercedes was brought back in 10 days later, and a worker opened the trunk when he heard mewing inside, D'Auteuil said. Out jumped the desperate Kitty, thin and thirsty but basically healthy. Kitty's strong constitution, and the relative warmth of the car, stored in a garage, probably saved his life, said Lawrence A. Shinnamon, a veterinarian at Anchor Animal Hospital.