Steering Wheel control Primary harness adapters convert the commands from your car's steering wheel controls to a code that an aftermarket radio can recognize. A patch lead is also requires for SWC type systems based on the brand of head unit you have. for more details check out our you tube video. http://aerpro.com/video/control_harness_installation CHSAVW CONTROL HARNESS TO SUIT VW Touareg I 2002->2010 models with MFD-RNS2
THIS CONTROL HARNESS REQUIRES A SPECIAL PATCH LEAD SOLD SEPARATELY. SEE BELOW: ALPINE - PL101 CLARION - PL104 JVC - PL104 KENWOOD - PL105 PIONEER - PL107 SONY - PL107