Audi A5 2007-2016 (8T) Audi A6 1997-2001 (C5) Audi A5 2007-2016 (8T)Audi A6 1997-2001 (C5)Headunit Installation RequirementsYou will needFacia - Single DIN : Not RequiredSteering Wheel Control Harness: Required, also requires radio brand specific patch leadAdditional ProductsAntenna: Available Please enable javascript to use this siteImages About this VehicleDates: Jan 1995 through Jan 1997Manufacturer: AudiSub-Model: C4Chassis Type: SedanPlace of Origin: GermanyTags: SedanAudiA6C4Audi A6 C4 Audi's mid-size car was previously named the Audi 100 (or Audi 5000 in the United States), and was released in three successive generations (Audi C1, Audi C2 and Audi C3).[2] In 1994, the latest generation (C4) of the Audi 100 was facelifted and re-badged as the Audi A6, to fit in with Audi's new alphanumeric nomenclature (as the full-size A8 had just been introduced). The exterior was changed only slightly from the "C4" Audi 100 – new front and rear lights, new radiator grille, similarly with chassis and engine and transmission choices. This is the face lifted Audi 100 and re-badged as A6. Once the A6 was introduced, no Audi 100 were released. Information provided by: http://en.wikipedia.org/wiki/Audi_A6#C4 Speaker CavitiesFront: 5-1/4" Rear: 6-1/2" ‹ Audi A5 2007-2016 (8T) Audi Audi A6 1997-2001 (C5) ›