ive completely replaced my 8p bose system, but its noticable that the audi front door speakers have much more of a mid and mid-bass than any replacement speakers - i noticed this with my b5 as well - has anyone else noticed this? although the quality is massively better, it seems a little flat - maybe i've just got used to the horribly coloured sound of the oem speakers?? i currently have: focal utopia front components cdt rear components genesis profile 5 amp ED 9kv2 in 26L stealth box in a qb3 alignment. which leads on to the question about coding - there are 3 choices for the radio coding - flat, a3 or bose - from what i can read, the flat and bose are the same, but then why are there 2 options, and what equalisation does the a3 setting actually have? more bass? less? its difficult to tell with a back to back listening, cos the recoding cuts off the sound for a few seconds which makes it quite difficult to tell the differences. any ideas?