Does anyone know if there is a way to use the AUX input from a standard HK radio with a cd changer. I can hit the CDC button for 3 seconds and it tells me the AUX is on. My objective is to hook up Sirius radio. The dealership tells me there is no way to retro-fit the factory set up. It had to be ordered from the factory. Fine. I just want a direct connection from a plug and play unit. The dealership tells me they could do it for an 05 but not an 06. I don't know that the difference is. The head unit looks the exact same. Is it just an adapter that they didn't come out with yet? Is it a marketing scam? Can I use an IPOD set up just to connect sound? Somebody help. I don't think I am getting a straight answer from MB.