Hi there! Just bought a 2006 A4 Avant and would like to know if there are any things I can do to it to enhance the drive, add functionality etc. I am a Porsche tech by trade and can have access to a mate's diagnostic tester and intend to add cruise control to the car ASAP but is there anything codable or programmable on the car? I'd like to add ipod connectivity - looking around the forum it would seem a Dension gw 300 is the way to go; correct? Car has RNSE, Bose, Nav Plus inc. BT phone anything else worth going for?