1) How does the sound quality and FM reception of the Audi Symphony head unit compare to the current Audi Concert head unit? <p>2) Can I listen to a current A8 Symphony stereo system and get an accurate feel for what the 99.5 A4's stereo will sound like?<p>3) Are the speakers are amplfiers of the current A8 stereo the same as those of the current A4 Concert stereo?