Audi RNS-E audio aux source activation is a quick procedure. Your radio navigation system (also called Audi Navigation Plus) can play AUX-IN audio sources (stereo line-in), so you can connect your phone with your cars sound system.
Audi RNS-E audio aux – tools and parts
- audio cable (minijack, RCA or any other that you can connect to your audio source),
- 32-pin A/V input connector (part no.: 1J0 972 977 G)
- 3x repair wire 0.5mm (part no.: 000 979 009)
- wire stripper
- wire cutter
- ratchet crimping tool
- radio removal keys
- VCDS, VAG-COM or other diagnostic interface
Performing this procedure may cause permanent damage to your car.
Do this at your own risk!
We are not responsible for any loss or damage.
- This modification is designed only for cars with Audi RNS-E system. Check this article: Audi navigation systems – MMI RNS BNS RMC differences.
- We recommend to update Audi RNS-E system to latest software version before starting this modification.
Audi RNS-E audio aux – wiring
Start with removing the RNS-E unit. There are 4 locks that need to be pressed with radio removal keys in order to eject the unit from the dashboard.
After that check back side of the RNS-E and locate 32-pin connector. It should be located on the upper left side. If you car is not equipped with TV tuner this connector should be unused.
Next connect your audio wire to the 32-pin connector. Use the wire repair kit and connect your wire with the appropriate pins:
- 22 – left channel
- 6 – right channel
- 21 – ground for both channels
Now you can connect the plug to the RNS-E and install the unit back in your cars dashboard.
Audi RNS-E audio aux – VCDS coding
- Connect with module 37 – Navigation.
- Choose procedure 07 – Coding.
- Read original coding (e.g. 0205115). Write down this number.
- Change second to last digit by adding +4 to current value. E.g. 0205155.
- Enter and save new coding.
From now on when you go to CD/TV → Source (or MEDIA → Source) you will see AUX option. Choose it and your Audi RNS-E will start playing audio directly from your addition audio source.