Product Overview
The MR 12 VOLT Most Bus Bluetooth Interface is designed to integrate modern audio connectivity into compatible BMW vehicles equipped with M-Ask, CCC, or CIC i-Drive systems, or professional CD players without i-Drive. This device emulates an OEM CD changer, allowing for seamless Bluetooth audio streaming, hands-free calling, and USB/AUX playback through your car's existing audio system.

Image: The MR 12 VOLT Bluetooth Interface main unit, showing the AUX IN, SD card slot, USB port, and RESET button on the front panel.
Cuntenutu di u pacchettu
Verificate chì tutti l'articuli elencati quì sottu sò inclusi in u vostru pacchettu:
- Mr12 V Main Module
- Fiber Optic Wiring (Y-cable)
- Cablaggio di putenza
- Microphone (270 cm cable length)
- 3.5mm AUX Input Cable
- 2 Red Scotch Lock Connectors
- 1 Connector for Optical Circuit

Image: A visual representation of the MR 12 VOLT main module alongside its included accessories: Fiber Optic Cable & Loop, Aux Cable, Power Wiring, and Microphone.
Cumpatibilità
Compatibilità Radio:
- i-Drive CIC
- i-Drive CCC
- M-ASK
- Professional CD player (without i-Drive)
Vehicle Compatibility (BMW Series):
- 1 Series: E81, E82, E87, E88
- 3 Series: E90, E91, E92, E93
- 5 Series: E60, E61
- 6 Series: E63, E64
- X1: E84
- X5: E70
- X6: E71
- Z4: E89
Note impurtanti di cumpatibilità:
- Your radio must support an external 6-CD changer, as the Mr12Volt P600 emulates this OEM function. If your car does not have a CD changer installed, the CD changer function must be activated by a BMW dealership.
- If an OEM CD changer is already installed, you will need to bypass it, and you will lose the functionality of the original CD changer.
- Track metadata is only supported on CCC and CIC head units.
Installazione è installazione
Prima di l'installazione:
- Ensure your vehicle's ignition is off and the battery is disconnected before beginning installation.
- Confirm that your car's head unit supports or has activated the external 6-CD changer function. If not, activation by a BMW dealership may be required.
- Familiarize yourself with your vehicle's specific audio system and wiring diagrams. Professional installation is recommended if you are unsure about any steps.
Passi di cunnessione:
- Connect the Fiber Optic Y-Cable: Locate the existing fiber optic connection to your head unit. Use the provided Y-cable to integrate the Mr12Volt module into the MOST bus system. This cable allows the module to emulate the CD changer.
- Connect Power Wiring: Connect the power wiring to a suitable 12V power source and ground in your vehicle. Ensure proper polarity. The red Scotch Lock connectors can be used for secure wire connections if needed.
- Cunnette u microfonu: Plug the microphone into the designated MIC input on the Mr12Volt module. Route the microphone cable (270 cm) to a suitable location for clear voice pickup, such as near the rearview mirror or sun visor.
- Connect AUX Input Cable (Optional): If you plan to use the 3.5mm AUX input, connect the provided cable to the AUX IN port on the module.
- Assicurà u Modulu: Find a secure and dry location to mount the Mr12Volt module, ensuring it is not exposed to excessive heat or moisture. Consider the dimensions for placement.

Image: The orange fiber optic Y-cable, essential for integrating the MR 12 VOLT module into the vehicle's MOST bus system, allowing it to emulate a CD changer.

Image: Diagram showing the dimensions of the MR 12 VOLT module: approximately 14.5cm in length, 9cm in width, and 2.5cm in height, useful for planning installation space.
Istruzzioni di funziunamentu
Operazione basica:
- Selezzione di a fonte: Once installed, select the CD changer source on your car's head unit to access the Mr12Volt interface.
- Streaming audio Bluetooth: Pair your smartphone or other Bluetooth-enabled device with the Mr12Volt module. You can then stream music, navigation audio, podcasts, and more through your car's speakers.
- Chiamate in mani libere: Make and receive calls directly through your car's audio system using the connected microphone.
- Controlu di u volante: The module supports control via your vehicle's steering wheel buttons for functions like track skipping and volume adjustment.
- Menu Navigation and Metadata: The interface provides easy menu navigation. Music information (metadata) is displayed on the car's screen, but only on CCC and CIC head units that support text display.
USB and AUX Playback:
- USB File Sistema: Supportatu file systems for USB drives are FAT16 or FAT32.
- Capacità di almacenamiento USB: The module supports USB storage devices up to 32 GB for music content.
- Formati musicali: Supported music formats include MP3 and WMA.
- Ingressu AUX: Connect any audio device with a 3.5mm jack to the AUX IN port for direct audio playback.

Image: Screenshots of the MR 12 VOLT interface displayed on a BMW iDrive screen, showing selection of "CD-ROM" as the source and the "Now Playing" screen with options for Bluetooth audio, USB, and SD card.
Risoluzione di prublemi
- No Sound or Device Not Recognized:
- Ensure the CD changer function is activated in your car's head unit. This may require activation by a BMW dealership if not already present.
- Check all fiber optic and power connections for secure fitment.
- Verify that the correct source (CD changer) is selected on your head unit.
- Problemi di accoppiamentu Bluetooth:
- Ensure the Mr12Volt module is powered on and discoverable.
- Delete previous Bluetooth pairings from your phone and try pairing again.
- Restart both your phone and the car's audio system.
- Problemi di riproduzione USB:
- Verify that your USB drive is formatted to FAT16 or FAT32.
- Check that music filesò in furmatu MP3 o WMA.
- Ensure the USB drive capacity does not exceed 32 GB.
- Try a different USB drive to rule out drive issues.
- No Metadata Display:
- Metadata display is only supported on CCC and CIC head units. If you have an M-ASK or Professional CD player, this feature is not available.
Specificazioni
| Marca | MR12VOLT |
| Numero di mudellu | 1601BM-IT |
| UPC | 721295864190 |
| Tecnulugia di cunnessione | Bluetooth, Aux, USB |
| Dispositivi compatibles | Smartphone, Computer, Tablet, Radio |
| USB File Supportu di u sistema | FAT16, FAT32 |
| Capacità di almacenamiento USB | Finu à 32 GB |
| Formati di musica supportati | MP3, WMA |
| Lunghezza di u cable di u microfonu | 270 cm |
Mantenimentu
The MR 12 VOLT Bluetooth Interface is designed for durability and requires minimal maintenance. To ensure optimal performance and longevity:
- Keep the module and connections clean and free from dust and debris.
- Evitate d'espone l'unità à temperature estreme, à a luce diretta di u sole o à l'umidità eccessiva.
- Do not attempt to open or modify the module, as this may void any applicable warranty and could cause damage.
Garanzia è Supportu
Per infurmazioni nantu à a garanzia è l'assistenza tecnica, vi pregu di cunsultà a ducumentazione furnita cù u vostru acquistu o cuntattate direttamente u fabricatore. Cunservate a vostra prova d'acquistu per qualsiasi reclamazione di garanzia.





