Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
External Audio Source Connection -R199
There are several versions of the external audio source connection.
CAN versions
Jack for an external audio source inside the glove compartment
The AUX IN socket version is installed in the center console storage compartment.
These external audio source connections are connected directly to the radio.
Either an external audio source connection or an AUX IN jack is installed.
MOST versions, MMI through 10.31.2008
Jack for an external audio source inside the glove compartment
The MOST bus connects the external audio source connection to the Infotainment.
The AUX IN socket version is installed in the center console storage compartment.
This external audio source connection is connected directly to the digital sound system control module -J525-.
Either an external audio source connection or an AUX IN jack is installed.
MOST versions, MMI from 11.03.2008
The external audio source connection is part of information electronics control module 1 -J794-.
The interface is located in the glove compartment.
The AUX IN socket version is installed in the center console storage compartment.
This external audio source connection is connected directly to the information electronics control module 1 -J794-.
Different external audio sources can be connected to the external audio source connection :
- iPod
- MP3-Player
- USB Stick
Suitable adapter cables are needed. Refer to the Owner's Manual.
Fault finding is performed via "Guided Fault Finding" using the Vehicle Diagnostic Tester.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.