Instruct: Classify Amazon reviews into positive or negative sentiment
Query: iPod Disappointment

I purchased this stereo to replace an old Denon receiver that had burnt out it's surround sound card. The numerous HDMI inputs seemed good, since that looks like the way components are going in the near future.My disappointment is the inability of the stereo to use my iPod or iPhone as an input source. It will play but I have to turn the volume all the way to maximum in order to get legible sound. I am using both an iPod Dock with RCA cables out and have also tried using RCA cables connected to the headphone jack, same result. I can use the RCA cable / headphone plug cable and connect my laptop to the stereo and get great results.Sony Support told me that the problem was the RCA cables were an analog sound and that I would need to buy their DM Port and use their DM Port cables, at an extra $99!!!