In my X this solution using the cassette player DOES NOT sound like garbage at all. It is actually pretty close to the quality from the CD changer. Unlike hc97mg2000 I have never experienced any volume issue nor had any problem with the sound fading away. I actually had people in my car amazed by the sound obtained from this solution. It is much better than an FM transmitter. I would agree though that the Dice IPOD integration kit is probably the best for connecting an IPOD to the X but for a cheap connection working with any mp3 I found the cassette player to be a good solution. I did it in 2 other BMW (1998 & 2000_3 serie ) with the same good results.