Originally Posted by M0.92
Don't think anyone has mentioned the Aux volume setting on your head unit. If it's set at max, as mine was, it will sound horrible. I turned it down to mid point and set my iPad volume to max volume. Sounds great now.
This for sure... Make sure to set the level at the midpoint. I had lots of distortion in turning that up. Also you need to use a line out aux instead of the headphone jack. If you do these 2 things then your music will sound as good as the format/bitrate ripped. Doing this and playing ALAC files will equal CD quality. Really anything better than 128k MP3 will be good.
2007 335i AW, Premium, Sport, Cold Weather. Mods: M-sport st.wheel, DCI
2012 x5d AW, Premium, Sport, Sound, 3rd Row