Crux SWRBM-57K User Manual

- Retains factory features in select BMW vehicles with I/K-Line Bus while functioning with an aftermarket radio.

- Supports non-amplified systems only.

- EIA color coded wiring for easy installation.

SWRBM-57K MODULE

SWC CABLES

17-Pin Round Pin Harness

40-Pin Quadlock Harness

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SETTING THE AFTERMARKET RADIO BRAND

This step is done on the BMW SWC Module. With the key in the off position, set the DIP switches to the
corresponding radio being used.

3.5MM SWC CABLE

The SWRBM-57K module allows for two types of connections:

OPTION A is used for ALPINE, CLARION, (JVC and KENWOOD units will use the Blue/Yellow wire).
OPTION B is used for BOSS, DUAL, FAHRENHEIT, JENSEN, POWER ACOUSTIK, PIONEER, SONY and

SOUND STREAM units.

NOTE: Cap or insulate the 3.5mm plug or Blue/Yellow wire if not being used.

SETTING THE BMW SWC

BMW
TYPE A: 17-PIN ROUND CONNECTOR APPLICATIONS

(I-Bus Slide-Lock 17 Pin Round Connector)

1990 – 1998 3 Series (E36)
1998 – 2006 3 Series (E46)

1995 – 2000 5 Series (E39)

1990 – 1998 7 Series (E38)
2004 – 2006 X3

2000 – 2001 X5
1996 – 2002 Z3
2001 – 2002 Z8
1999 – 2002 M
1999 – 2002 M

TYPE B: 40-PIN QUAD-LOCK CONNECTOR APPLICATIONS

(I-Bus QuadLock 40 Pin Connector)

2001 – 2006 Compact (E46)
1998 – 2005 3 Series (E46)

2001 – 2003 5 Series (E39)

1994 – 2001 7 Series (E38)

2004 – 2007 X3

2002 – 2006 X5
2003 – 2008 Z4
2001 – 2005 Mini

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