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Crux SWRMB-57M, Radio Replacement with SWC Retention for Select Mercdes Benz Vehicles

SKU: CRU-SWRMB-57M UPC: 06704805
Out of stock
Regular price $115.95
Regular price Sale $187.95 Sale price $115.95

The CRUX SWRMB-57M is a radio replacement interface for select Mercedes-Benz vehicles. It facilitates the integration of an aftermarket radio to retain factory features with CAN-bus based vehicles. This enhanced interface is also pre-programmed for retention of steering wheel controls. This kit includes an SWRMB-57M module, SWRMB-57M harness, and SWC cables.


  • Retains factory features with aftermarket radios
  • Retains Steering Wheel Controls via built-in, pre-programmed interface
  • Unit provides Reverse gear, Illumination, and Speed signal 
  • Includes Quadlock harness

1. This interface does not retain the factory Bluetooth or Sirius Satellite Radio.
2. Not compatible with amplified systems.

Vehicle Compatibility


  • 2004 – 2008 E-class (W211)
  • 2005 – 2006 CLS-class (W219)
  • 2005 – 2008 SLK Class (R171)


WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to