12-Pin Connector 4, Cd Changer -R41- /External Audio Source Connection -R199- /Multimedia System Control Module -J650-
WARNING: This page is about a different car, the 2014 Volkswagen Jetta, 2013 Volkswagen Jetta, 2012 Volkswagen Jetta, 2011 Volkswagen Jetta, and 2010 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying 12-Pin Connector 4, CD Changer / External Audio Source Connection / Multimedia System Control Module
- Left audio input (+) external audio source connection / multimedia system control module
- Audio input ground external audio source connection / multimedia system control module
- Audio ground from the CD changer
- Terminal 30 to the CD changer
- Not assigned
- DATA OUT to CD changer
- Right audio input (+) external audio source connection / multimedia system control module
- Left audio from the CD changer
- Right audio from the CD changer
- Control signal to the CD changer
- DATA IN from the CD changer
- CLOCK from the CD changer