[SeanMurphy]

I'd say pull the deck out, and try pushing a small piece of wire into the center of the antenna plug on the deck. I work at a kenwood retailer, and all we generally use as an antenna on our demo decks is a small piece of wire about 8 inches long on an antenna plug. This gets perfect FM reception within our steel building. If that allows you to get reception, then you know the problem is in the factory antenna.. either the wire is chafed through and is shorting somewhere, or the core is broken near the plug.