Audi A6/A7/Q3 RMC_NAR_P12321 Firmware Update

Audi A6/A7/Q3 RMC_NAR_P12321 Firmware Update

Update a compatible North American Audi RMC NAV-RADIO PLUS system to firmware version RMC_NAR_P12321.

This firmware is intended exclusively for compatible Audi A6, Audi A7 and Audi Q3 vehicles from the USA, Canada and Mexico using the RMC_NAR_ software branch.

The package contains firmware only and is supplied exclusively as a digital download.

Firmware details

• Firmware version: RMC_NAR_P12321
• System: RMC NAV-RADIO PLUS
• Software branch: RMC_NAR_
• Region: North America
• Supported countries: USA, Canada and Mexico
• Compatible models: Audi A6, Audi A7 and Audi Q3
• Download size: approximately 110 MB
• Installation media: SD card
• Delivery: digital download only
• Product type: firmware only

Compatible Audi models

This firmware is intended for compatible North American:

• Audi A6
• Audi A7
• Audi Q3

The installed software must belong to the RMC_NAR_ branch.

Compatibility is determined by the complete firmware version and installed RMC hardware, not only by the vehicle model or production year.

Check your RMC version before ordering

Check the complete current software version before purchasing.

The firmware version must begin with:

RMC_NAR_

If you are unsure which system is installed, follow the Audi MMI identification guide.

You can also provide a clear photo of the software information screen when ordering.

Do not install this firmware if the current version begins with RMC_EU_ or another regional prefix.

North American firmware only

RMC_NAR_P12321 is intended for vehicles configured for the North American market:

• USA
• Canada
• Mexico

It must not be installed on a European RMC unit. The regional firmware affects system configuration and compatibility with the installed hardware.

A European RMC_EU_ system requires the appropriate European firmware package.

What is included?

The download includes:

• Official RMC_NAR_P12321 firmware
• Firmware installation files
• Access to the online firmware installation instructions
• Compatibility assistance
• Technical support related to the update

What is not included?

This product does not include:

• Navigation map files
• Navigation activation
• Apple CarPlay or Android Auto
• Bluetooth or smartphone interface hardware
• An SD card
• Physical installation media
• Regional conversion
• Replacement RMC hardware

This firmware update does not convert a European RMC unit to the North American region.

Bose warning

If the vehicle has a Bose sound system, deselect the Bose amplifier from the update device list before starting the installation.

Do not update the Bose amplifier as part of the standard firmware procedure. Updating it may remove its parameters and cause audio faults that require specialist diagnostic tools to repair.

Review the selected devices carefully before confirming the update.

Preparing the SD card

You need:

• A computer
• A suitable SD card
• An SD card reader
• 7-Zip or another compatible archive extractor

Download and extract the complete archive before copying the files to the SD card.

Copy the extracted update files to the root directory of the SD card. Do not copy the ZIP archive itself and do not place the update files inside an additional folder.

Installation instructions

Follow the Audi MMI and RMC firmware update guide before starting.

The general process is:

1. Confirm that the current firmware begins with RMC_NAR_.
2. Connect the vehicle to a stable battery charger.
3. Download and extract the firmware archive.
4. Prepare the SD card according to the instructions.
5. Insert the SD card into the vehicle.
6. Open the software update menu.
7. Select the SD card as the update source.
8. Review the proposed update device list.
9. Deselect the Bose amplifier if the vehicle has Bose.
10. Begin the firmware update.
11. Do not interrupt the installation.
12. Allow the RMC system to complete all restarts.
13. Check the installed firmware version.

Important installation precautions

• Verify the complete current firmware prefix.
• Use a stable battery charger.
• Use a reliable and correctly prepared SD card.
• Deselect the Bose amplifier.
• Do not switch off the ignition during the update.
• Do not remove the SD card while installation is active.
• Do not disconnect the battery or RMC components.
• Allow all restarts to finish.

Digital download only

This product is supplied exclusively as a digital download.

After purchase, download the archive to your computer, extract all files and prepare your own SD card.

A prepared SD card is not shipped with this product.

If the archive appears damaged or cannot be extracted, download it again using a stable connection. We recommend using 7-Zip.

Compatibility exclusions

Do not install this firmware on:

• European RMC_EU_ systems
• MMI 3G Basic systems using BNav_
• MMI 3G High systems using HNav_
• MMI 3G Plus systems using HN+_ or HN+R_
• MIB systems
• Vehicles from another region
• Audi models using another RMC hardware or firmware branch

Frequently asked questions

Which vehicles support RMC_NAR_P12321?

It is intended for compatible North American Audi A6, Audi A7 and Audi Q3 vehicles equipped with RMC NAV-RADIO PLUS.

Is this firmware compatible with European RMC units?

No. It is intended only for the North American RMC_NAR_ software branch.

Are navigation maps included?

No. This product contains firmware only.

Does the firmware activate navigation?

No. It does not add or activate navigation hardware or licenses.

Does it include Apple CarPlay or Android Auto?

No. Firmware installation does not add these functions.

Is an SD card included?

No. The product is supplied exclusively as a digital download. You must prepare your own SD card.

What should I do if the vehicle has Bose?

Deselect the Bose amplifier from the update device list before beginning the installation.

Can this package convert RMC_EU to RMC_NAR?

No. This product is a firmware update, not a regional conversion package.