Compatible with vehicles: 2017 A1 Urban Hatchback 2-Door 1.4L 1390CC l4 Gas DOHC Turbocharged; 2017 A7 Elite Hatchback 4-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2017 A8 Premium Sedan 4-Door 3.0L 2995CC V6 Gas DOHC Supercharged; 2017 R8 Plus Coupe 2-Door 5.2L 5204CC V10 Gas DOHC Naturally Aspirated; 2017 Q3 Performance Sport Utility 4-Door 2.5L 2480CC l5 Gas DOHC Turbocharged; 2017 RS7 Performance Hatchback 4-Door 4.0L 3993CC V8 Gas DOHC Turbocharged; 2017 S7 Base Hatchback 4-Door 4.0L 3993CC V8 Gas DOHC Turbocharged; 2017 S8 Base Sedan 4-Door 4.0L 3993CC V8 Gas DOHC Turbocharged; 2016 A8 Premium Sedan 4-Door 3.0L 2995CC V6 Gas DOHC Supercharged; 2016 A8 L TDI Sedan 4-Door 3.0L 2967CC V6 Diesel DOHC Turbocharged; 2016 allroad Premium Wagon 4-Door 2.0L 1984CC l4 Flex Fuel DOHC Turbocharged; 2016 Q3 Komfort Sport Utility 4-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2016 Q5 Hybrid Prestige Sport Utility 4-Door 2.0L 1984CC l4 Gas/Electric DOHC Turbocharged; 2016 Elite Sport Utility 4-Door 3.0L 2967CC V6 Diesel DOHC Turbocharged; 2016 R8 Base Convertible 2-Door 4.2L 4163CC V8 Gas DOHC Naturally Aspirated; 2016 RS5 Base Coupe 2-Door 4.2L 4163CC V8 Gas DOHC Naturally Aspirated; 2016 RS7 Performance Hatchback 4-Door 4.0L 3993CC V8 Gas DOHC Turbocharged; 2016 S3 Base Hatchback 2-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2016 S3 Base Sedan 4-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2016 S3 Sedan 4-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2016 S3 Prestige Sedan 4-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2016 S3 Technik Sedan 4-Door 2.0L 1984CC l4 Gas DOHC Turbocharged; 2016 S4 Sedan 4-Door 3.0L 2995CC V6 Gas DOHC Supercharged; 2016 S5 Coupe 2-Door 3.0L 2995CC V6 Gas DOHC Supercharged. Includes 4 gold-plated RCA connectors (2 RCA input & 2 RCA output). Level control knob. Frequency range: 150Hz – 40Hz. Gain adjustment: 0dB to -12dB. Color: Black. Material: Plastic. Dimensions: Approx. 68 x 56 x 31 mm. Package includes: 1 x Car Audio Regulator 4 x Screws Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.