Steering wheel adapter BMW 1 / 3 / 5 series / X5 / X6 Quadlock Multilead MOST Amp

BMW Steering Wheel Adapter - Preserving SWC Functions When Upgrading the Radio

This adapter allows you to retain the original Steering Wheel Control (SWC) functions when replacing the factory Head Unit (HU) with a retrofitted version. This product is designed for BMW vehicles with a CAN bus and the MOST-enhanced system.

Key features:

• Maintaining original SWC functions after replacing the radio.

• Fully compatible with selected BMW models with Business Professional OEM HU and MOST system.

• Easy assembly with step-by-step instructions.

• Professional technical support from the manufacturer.

Connectors and signals:

• CAN bus connector:40-pin Quadlock BMW

• SWC connector:OEM SWC → 3.5mm Jack/Fly Wire

• Battery fuse connector:+12V, terminal 30

• Available signals:

  • Red: +12V ignition terminal (15)

  • Orange: +12V lighting terminal (58)

  • Purple/White: +12V reverse gear signal

  • Pink: Speed ​​pulse signal

  • Green: Parking brake signal (GND)

• Output load capacity:max. 250 mA

• For current requirements above 250 mA:

  1. relay coil resistance min. 75 Ω

  2. relay coil resistance min. 150 Ω

Compatible BMW vehicles:

• Series 1 (E81/E82/E87/E88):03/2004 - 10/2013

• Series 3 (E90/E91/E92/E93):03/2005 - 10/2013

• Series 5 (E60/E61):07/2003 - 07/2010

• BMW X5 (E70):03/2007 - 09/2013

• BMW X6 (E71/E72):05/2008 - 06/2014

Important notes:

• In vehicles with OEM enhanced MOST system the HU retrofit fader is not supported.

• PDC and audible warning signals are not supported (*applies to some models).

• Before installation, compare the adapter connectors with the connectors in the vehicle and make sure they are visually and technically compatible.

• Checking SWC function and vehicle settings is essential before final installation.

Assembly instructions:

1. Check the operation and settings of the original HU.

2. Disconnect the HU from the voltage.