Fits to Audi A5 Spotback 2007 - 2016, subwoofer 8"/20cm, volume 6 liters
Fits to Audi A6 C6 Avant 2005 - 2011, subwoofer 10"/25cm, volume 15 liters
Fits to Audi A6 C7 Sedan 2011 - 2018, subwoofer 10"/25cm, wolume 15 liters
Fits to BMW 1 E87 2004 - 2011, subwoofer 10"/25cm, volume 15 liters