DICE Electronics DICE interface for iPod Volkswagen - Manual (Page 14)

5b - VW radios with R1 connectors -You can access the CD changer connector located on the back of the radio.
Unplug the factory connection if present and plug the VW-R1 BUS connector into the receptacle. The
connector should securely lock. Ground wire MUST be connected to a stable grounding point.
Ground
wire
to interface
unit
to ground
10
10
VW-R1 connector
14