ACV LFB Mercedes vehicles Quadlock Multilead Amp MOST loose 42xmc008-0

ACV LFB Mercedes vehicles Quadlock Multilead Amp MOST loose 42xmc008-0

Retain the original steering wheel remote control functions when replacing the factory radio with an aftermarket radio.

Depending on the vehicle's equipment, the range of functions and the software of the retrofit device, individual operating functions may be omitted or replaced by other functions.

Compare the adapter plugs shown with those in your vehicle and make sure they fit both visually and technically.

Please also check if one of the listed original factory radios was installed in your vehicle.

Before final assembly, check the vehicle functions, vehicle settings and steering wheel remote control for proper function.

A notice:

CAN bus

Connection: 40-pin Quadlock Mercedes connector
Connection: OEM sound system MOST25 > RCA (male) red/white

Vehicles with 2-DIN Audio 20 OEM unit
Vehicles with 2-DIN Audio 50 APS Comand NTG2 / NTG2.5 OEM Navigation*
Vehicles with MOST25 OEM sound system**

Vehicles without Audio 10 OEM unit
Vehicles without Comand 2.0 / 2.5 OEM Navigation
Vehicles without D2B OEM sound system

In individual cases, depending on the OEM system and the aftermarket radio, increased noise or a switching-on or switching-off noise may occur.

RCA (male) > Front preamp output aftermarket radio
Fader function not supported

DIP switch settings for the retrofit device manufacturer (see instruction manual)

Suitable for the following vehicles

• Mercedes A-Class (C169/W169) 10/2004 - 04/2008
• Mercedes A-Class (C169/W169) 06/2008 - 06/2012
• Mercedes B-Class (T245) 07/2005 - 04/2008
• Mercedes B-Class (T245) 04/2008 - 09/2011
• Mercedes C-Class (CL203/S203/W203) 02/2004 - 09/2007
• Mercedes CLK-Class (W209) 04/2005 - 01/2010
• Mercedes GL-Class (X164) 09/2006 - 05/2009
• Mercedes GL-Class (X164) 05/2009 - 07/2012
• Mercedes M-Class (W164) 07/2005 - 04/2008
• Mercedes M-Class (W164) 10/2008 - 07/2011
• Mercedes ML (W164) 07/2005 - 04/2008
• Mercedes ML (W164) 10/2008 - 07/2011
• Mercedes R-Class (W251) 09/2005 - 05/2007
• Mercedes R-Class (W251) 05/2007 - 05/2010

The following signals are provided:

Reimported vehicles or vehicles with different software may be incompatible in terms of functions.

Red: +12V ignition terminal 15
orange: +12V lighting terminal 58
Purple/white: +12V reverse signal
Pink: Speed signal
Green: Ground (GND) Handbrake signal

Output current rating: 250 mA max.

Current requirement greater than 250 mA:
1 relay coil resistance 75 ohms min.
2 relays, coil resistance 150 ohms min.

Steering wheel remote control

OEM sound system MOST25 > Fader function not supported

*Time settings not supported > Code vehicles to Audio 20 OEM device if possible
**Removing OEM add-on components > CD changer / TV tuner / telephone module from the MOST ring:
Fiber optic cable connector MOST ring > Item: 771000-2100
Optical fiber loop (f) MOST ring > Item: 771000-2101