Thanks for the replies and help!!! rain_crusader, he did not tell me specifically what harness he was going to need to buy. All he did was pull the car up on his computer and print out a diagram showing the antenna cable running from the trunk to the back of the radio. (Still looking around the house for the diagram, will post when found). No names or anything, just basic 1,2,3 numbers for each part. He told me that the system showed a harness in the picture of the path of the antenna wire but did not name the harness specifically. The dealer said that the harness was needed so that I could receive radio information (station name, song title). Terry06, you think that the antenna should be able to just plug straight up into the back of the stock radio? The antenna is too small to fit properly into the back of the stock radio. Could it be possible that the previous owner removed the old antenna wire and rerun a new antenna wire to the back of the car so that it would fit the aftermarket adapter for the radio that he installed?