Thanks everyone! Connections seem fine both behind the unit and up top. The wire moves freely thru the wall space so I don't think it's broken or stapled thru. When I hold the antenna connection, at the plug point, it comes in great! So all I got to do us open the basement hatch and have a kid sit in there holding it when we want the radio.
Guess I'll call my dealer and see what they think. I'll try a cheap antenna as suggested too, but am sure that'll work fine. I didn't cut the dicor and pull the whole connection out up top, just looked in after removing the antenna mast itself. Looked fine. Maybe it is a bad wire? Does anyone know if the antenna wire pulls our from the top without cutting the dicor? That'd be fairly easy, but fishing back down not so much. Just gotta tie a pull string on down below first I guess.