User Manual

CAUTION!
All accessories, switches, climate
controls panels, and especially air bag indicator
lights must be connected before cycling the
ignition. Also, do not remove the factory radio
with the key in the on position, or while the
vehicle is running.
AX-BM90122
INSTALLATION INSTRUCTIONS
AxxessInterfaces.com © COPYRIGHT 2018 METRA ELECTRONICS CORPORATION REV. 5/8/18 INSTAX-BM90122
INTERFACE FEATURES
INTERFACE COMPONENTS
TOOLS REQUIRED
• Wire cutter • Crimp tool • Solder gun • Tape
• Connectors (example: butt-connectors, bell
caps, etc.)
TABLE OF CONTENTS
Connections to be made .......................................2
Installing the AX-BM90122 interface ....................3
Programming the ASWC-1 interface .....................3
BMW (with M.O.S.T. 25 amplifier) 2004-2013
Provides accessory power
Retains R.A.P. (retained accessory power)
Designed for amplified models
Retains audio controls on the steering wheel
Retains phone buttons (radio dependent)
Retains factory features: date, time, temperature display
Micro “B” USB updatable
AX-BM90122 interface
AX-BM90122 amplifier interface
ASWC-1 interface
AX-BM90122 harness
ASWC-1 harness
Female 3.5mm connector with stripped leads
APPLICATIONS
BMW
1-Series 2004-2013
3-Series 2005-2012 5-Series 2004-2010

Summary of content (4 pages)