Can you take a picutre? If its the stock headunit odds are like CrickiKaze said the headunit is busted. My headunit did the same expect i dont have RFHey so I just bought an 06 spec v and I'm having a similar issue. My fostgate radio turns on but I don't have sound. I'm not shure if this is the radio that came with the car. Everything is plugged in including the antenna, but minus that third wire harness at the beginning of the thread. Any idea what my problem could be?