Got a 7977 HU. It's getting some years on it, but still performs great. I bought a AI to rca converter so I could use the new IPOD. But, the source button doesn't bring up that input. It only brings up tuner and cd. I don't have the manual anymore, but don't think it would help anyway. What do I need to do?? Never used the Alpine's aux input before. My other HU's have a simple RCA input and it is easy as pie.
