Packard ... Kanter Auto Products

No, it's not Detroit. this sign is in New Jersey. The home of Kanter Auto Products, Boonton, NJ, almost certainly the world's largest stockist of Packard automobile parts

Check out this article for the lowdown on the eccentric Mr. Kanter:

http://www.nytimes.com/2005/02/16/nyregion/16towns.html