From the first day I got my S3 8L I've always thought the stock concert system for a expensive car (when new) has a rubbish stereo. My friend has an A4 b6 from 2004 with stock stereo and it sounds fantastic! Great bass just night & day difference compared to mine. I've replaced the speakers front and rear with ones recommended by Andymac with his adapters. While better it just sounds tinny no bass and just pants. Are all 8Ls the same? Even with BOSE option I've read it's not a worthwhile either. Apart from that I love my S3.