Aerpro T-harnesses let you integrate an additional device such as an aftermarket bluetooth kit into your car's factory radio and it's wiring. This allows your aftermarket Bluetooth kit to work with your car's speakers directly when on a phone call and revert back to the stereo when the phone is not in use.

To suit the following vehicle/make/model:

• Audi A3 2003-2007 (8P) (Head unit Dependant)
• Audi A3 2006-2012 (8P)
• Audi A4 2008-2013 (B8)
• Audi A5 2007-2016 (8T)
• Audi TT 2000-2006
• Audi TT 2007-2014 (8J)

Part number: CT10AU01