DWCX Radio Stereo Upgrade Harness With Canbus Decode Fit For VW Golf VI Jetta MK5 MK6 Passat B6 Polo RCN210|Cables, Adapters & Sockets| - AliExpress
Volkswagen Workshop Manuals > Golf Mk4 > Vehicle electrics > Communication > Infotainment > Radio "DELTA� > Overview of radio connectors > Contact assignment on multi-pin connectors I, II, III and IV on back of radio