I purchased the AAI-GM12 and hooked it up per the instructions you have on ctsvfaq.com When you did this did the ipod or whatever you hooked in sound a little off? By that I mean my sounds a little like a very small echo on the higher pitched frequencies or kind of "tinny". It's hard to describe the effect but it can be very annoying on most songs I have tried with it. Is this still the only product that will allow an input to a 2004 CTS-V? I have tried several different sources with same echo effect. I assume you just tune in XM1 or XM2 any channel right? Any help would be much appreciated. Thanks in advance.