Loudspeaker rings / loudspeaker mounting rings enable you to replace the original factory loudspeakers with higher-quality loudspeakers of common brands. Factory loudspeakers often have a shape that does not comply with DIN standards. Using our adapter rings, new loudspeakers can be installed in your vehicle without much effort.Suitable for the following vehicles:BMW X5 (E53) 1999 -/ 09/2006Mercedes CLK-Class (208) 1998 - 2003Nissan Primastar (1G) 2002 - 2006Opel Astra (F) 08/1991 - 01/2000Opel Astra (G) 02/1998 - 12/2005Opel Calibra 10/1989 - 0671997Opel Combo (C) 10/2001 - 2005Opel Corsa (B) 01/1993 -/ 08/2008Opel Corsa (C) 11/2000 -/10/2006Opel Meriva (A) 01/2006 - 2010Opel Omega (B) 08/1999 - 06/2003Opel Tigra Coupé 09/1994 -/ 06/2001Opel Tigra TwinTop 06/2004-05/2009Opel Vectra (C) 03/2002 - 08/2008Opel 2006Einbauort Vivaro (A) 01/2001 - 06/2014Opel Zafira (A) Tigra (A) Tigra TwinTop 06/2005Renault - 09/2001 - 09/2001 - Technical Front - 09/2001 - 09/2001 - - 09/2001 - Technical F