If you’re experiencing audio issues with your Audi MMI 3G+ system after installing an aftermarket amplifier, such as the Mobridge DA2, you may need to code your vehicle for an external amplifier using VCDS. This article will guide you through the process and explain why this coding is often necessary.
A common problem arises when upgrading the firmware of devices like the Mobridge DA2. While not breaking the MOST chain, audio output can cease entirely. Updating the MMI system might not resolve this issue. Often, the root cause lies in the coding of the Audi MMI system itself, specifically its interaction with the integrated amplifier.
The MMI system is designed to work with both integrated and external amplifiers. However, when an aftermarket amplifier is installed, the system needs to be explicitly told to utilize the external amp rather than the default integrated one. This requires coding the CAN gateway using VCDS.
The Mobridge manufacturer themselves confirm this, stating that the issue isn’t with their device but with the MMI coding. They recommend two key steps: upgrading to the latest Mobridge firmware and coding the car for an external amplifier via the CAN gateway. They attribute issues with older firmware versions to extended boot times, allowing the integrated amp to interfere before the aftermarket device can initialize.
Here’s why coding is crucial: Audi vehicles, particularly those with the BOSE sound system, are often factory-coded for an external amplifier. Without this coding, the MMI system may intermittently communicate with the aftermarket amplifier, leading to inconsistent audio output or complete silence. Coding ensures consistent communication and proper audio functionality.
How to code for an external amplifier using VCDS (Audi Chanel 47):
While specific coding instructions can vary slightly depending on the Audi model and year, the general process involves accessing the CAN gateway module within VCDS and modifying specific settings. The “Audi Chanel 47” often refers to a specific adaptation channel within the CAN gateway related to amplifier selection. Unfortunately, without specific details on the car model and VCDS version, precise instructions are difficult to provide.
Consult online forums dedicated to Audi VCDS coding or contact a professional installer familiar with VCDS for detailed guidance based on your specific vehicle. They can provide the correct coding changes for your particular setup.
In conclusion, coding your Audi for an external amplifier using VCDS is often essential for resolving audio issues when using aftermarket amplifiers. This process ensures proper communication between the MMI system and the new amplifier. While general guidance is offered here, consulting model-specific resources or a professional installer is recommended for accurate and successful coding. By correctly coding your Audi, you can enjoy the full potential of your upgraded audio system.
