5a - Audi radios with R connectors - You can access the CD changer connector located on the back of the radio. Unplug
the factory connection if present and plug the Audi-R BUS connector into the receptacle. The
connector should securely lock. Ground wire MUST be connected to a stable grounding point.
Audi-R connector
to ground
receptacle
to interface
module
factory harness
in vehicle
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