Audi A4 1998-2001 Avant (B5) Audi A4 2008-2013 (B8) Audi A4 1998-2001 Avant (B5) Audi A4 2008-2013 (B8)Headunit Installation RequirementsYou will needFacia - Single DIN : RequiredFacia - Double DIN: RequiredSteering Wheel Control Harness: Required, also requires radio brand specific patch leadAntenna Adaptor: Required Manufacturers headunits can vary slightly for this vehicle, please select yours for best results: 1: Single DIN, ISO, Analogue 2: Single DIN, ISO, CANBUS 3: Double DIN, ISO, CANBUS 4: Double DIN, Quadlock, CANBUS Please enable javascript to use this siteImages About this VehicleDates: Jan 2001 through Jan 2008Manufacturer: AudiSub-Model: B6, B7Chassis Type: SedanPlace of Origin: GermanyTags: AudiSedanA4B6B7The Audi B4 The Audi B6 (2001-2006) and the Audi B7 (2004-2008) are models of the Audi B4. Information provided by: http://en.wikipedia.org/wiki/Audi_a4 Speaker CavitiesFront: 6-1/2"Rear: 5-1/4" ‹ Audi A4 1998-2001 Avant (B5) Audi Audi A4 2008-2013 (B8) ›