ISO 20-pin wiring harness for car radio connection. This car radio adapter is not suitable for Bose systems.
This car radio wiring harness is specific to the following models: Audi: - A3 8L, 8P 1996-2003 - A4 B5, B6, B7, - A6 C4, C5, C6 - A8 D2, D3 - TT 8J, 8N