Steering wheel control adapter for Mercedes a, b, c, e, r, clk, slk, gl, ml most25 amplifier.

When replacing the factory radio with an aftermarket radio, the original functions of the steering wheel remote control must be retained. Depending on the vehicle's equipment and the scope of functions and software of the retrofit device, individual operating functions may be omitted or replaced by other functions. Compare the adapter plugs shown with the plugs in your vehicle and make sure they match visually and technically. Also check whether one of the listed original factory radios is installed in your vehicle. Before final installation, check vehicle operation, vehicle settings and the steering wheel remote control for functionality. Note: CAN BUS Connection: 40-pin Mercedes Quadlock connector Connection: OEM MOST25 sound system > Cinch(m) red/white Vehicles with OEM 2-DIN Audio 20 device Vehicles with OEM 2-DIN Audio 50 APS navigation Comand NTG2/NTG2.5* Vehicles with OEM MOST25 sound system** Vehicles without OEM Audio 10 device Vehicles without Comand 2.0 navigation / 2.5 OEM Vehicles without D2B OEM sound system DIP switch settings for the retrofit device manufacturer (see BDA) Cinch(m) > front preamplifier output for retrofit radio Fader function is not supported Make and model: 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 - 05.2010The following signals are provided: Re-imported vehicles or vehicles with different software may have incompatible functions. red: ignition terminal +12V 15 orange: lighting terminal +12V 58 purple/white: reversing signal +12 V pink: speed signal green: handbrake signal ground GND Output load capacity: max. 250 mA. Current requirements greater than 250 mA: 1 relay coil resistance 75 Ohm min. 2 Ralais coil resistance 150 Ohm min. Steering wheel remote control OEM MOST25 sound system > Fader function not supported *Time settings not supported > If possible, code vehicles to OEM Audio 20 device **Additional OEM components > Remove CD changer/TV tuner/telephone module from MOST ring: MOST ring fiber optic cable connector > Article: 771000-2100 Fiber optic loop (f) MOST ring > Article: 771000-2101General installation instructions:Testing:1: Check all operational functions and vehicle setup functions of the OEM device2: Remove the OEM device without voltage3: Check all interface connections for correctness and continuity without voltageConnection and connection sequence:1: Carry out settings and hardware configuration of the interface without voltage2: Check configuration of the radio connection cable3: Connect the radio connection cable according to the operating instructions of the retrofitted device4: Make all other connections according to the operating instructions of the retrofitted device5: Connect the entire installation to the vehicle with 6: Configure the interface software according to the information in the article text and in the BDA 7: Configure the retrofit device according to the operating instructions for the retrofit device steering wheel remote control/camera/FSE/antenna phantom power and others 8: Functional test of the steering wheel remote control and the vehicle Changes to the hardware configuration of the interface and the cable for connecting the radio: 1: Make changes without voltage 2: Connection after modification, see 5 to 8 above If the interface or the vehicle is not functioning properly: 1: Update to the OEM device 2: Operate the OEM device 3: Establish CAN bus silence 4: Check the hardware configuration of the interface 5: Connection after CAN bus rest, see 5 to 8 above Connections, changes to connections, alternative connections, connections of loose cables or extensions of connections of loose cables given in the information text or operating instructions are for orientation and information purposes only for trained specialist personnel. Additional connections, changes to the wiring configuration in the wiring harness or the use of alternative connections or extensions of connections: 1: Connections and Only trained specialists should carry out changes2: Before connecting, check connections and changes for any manufacturer approvals or manufacturer warranty terms that may be affected by the changes3: Before connecting, check connections and changes for operation and correctness by measuring and comparing using the vehicle wiring diagram4: Connected