I previously had a B6 Avant with Symphony 2 H/U and Bose speaker system and was delighted with the performance. Having been away from the Audi fold for a while, I have just bought a 2007 MY B7 Avant with Concert 2+ (double-DIN, single CD) and Bose and to my ears at least, I don't believe the sound quality is as good as the B6 - specifically clarity of speech from the radio.
1. Are there any differences between the tuner section of the older Concert & Symphony 2 and the newer Concert & Symphony 2+ that might explain the perceived deterioration in sound quality?
2. Does anyone have any experience of retrofitting a Symphony 2 into a car with Quadlock harness (with Bose!)? I can't help but think a generic Quadlock to ISO harness adaptor would need a great deal of modification...
Thanks in anticipation,