DICE Electronics DICE interface for iPod Volkswagen - Manual (Page 15)

5c - VW radios with R2 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-R2 BUS connector into the receptacle. The connector should securely
lock. Ground wire MUST be connected to a stable grounding point.
10
Ground
wire
to ground
VW-R2 connector
to interface
unit
15