Mutt, did it work before the antenna install? It's almost got to be the antenna, IMHO..but then WTF do I know. When I hooked mine up the other day it functioned perfectly, so I can't help from experience. One note, there are two different antennas, one for the RB1, one for the RB4. I had both around here for a week or two and they are different, even though the dealership and other said they are the same...