AXTC-BM1 Wiring Interface
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Specifications
- Product Name: AXTC-BM1
- Compatibility: BMW and Mini vehicles 2006-2016
- Features: Steering Wheel Control (SWC) and Data Interface
Product Usage Instructions
Connections
Follow these steps for connecting the product:
- Connect the 3.5mm adapter to the AXTC-BM1 harness.
- Connect the harness to the wiring in the vehicle.
- Refer to specific radio connections for proper
installation.
Programming
To program the interface, follow these steps:
- Open the driver’s door and keep it open during
programming. - Cycle the ignition on.
- Connect the harness to the interface and vehicle wiring.
- Tap the Volume Up button on the steering wheel.
- Continue following on-screen instructions for full
programming.
FAQ
Q: What should I do before installing the product?
A: Disconnect the negative battery terminal with the key out of
the ignition. Ensure all connections are secure before testing.
Q: How do I connect the product for vehicles without steering
wheel controls?
A: Tie the Brown and Brown/White wires together from the 3.5mm
adapter, then connect to the AXTC-BM1 harness and follow
programming instructions.
Q: What do the LED indicators signify during programming?
A: The LED will flash Green & Red while programming and turn
solid Green once completed successfully.
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AXTC-BM1
INSTALLATION INSTRUCTIONS
BMW / Mini SWC (Steering Wheel Control) and Data Interface 2006-2012
APPLICATIONS
BMW 1 Series ………………… 2008-2013 3 Series (1) …………… 2012-2013 3 Series………………….2007-2011
(1) Excluding sedan models
INTERFACE FEATURES
· Provides accessory power (10-amp) · Ability to dual assign steering
· Provides illumination, parking brake, wheel control buttons
reverse, and speed sense outputs · Retains memory settings even
· Retains warning chimes through after battery disconnection or
an onboard speaker
interface removal (non volatile
· Retains audio controls on the
memory)
steering wheel
· Designed for non-amplified
· Designed to be compatible with all major radio brands
models, or when bypassing a factory amplifier
· Auto detects vehicle type, radio · Retains balance and fade
connection, and preset controls · Micro-B USB updatable
3 Series (2)…………………..2006 M3…………………………2007-2013
(2) Sedan and Wagon only
Mini (Cooper) Clubman (R55) ……..2008-2014 Convertible (R57) ….2009-2015 Countryman (3)……. 2011-2016
(3) Without factory NAV
Coupe (R58)…………..2012-2015 Hatchback (R56) ……2007-2013 Paceman (3) ………… 2011-2016 Roadster (R59) ……… 2012-2015
TABLE OF CONTENTS Connections……………………………………………………2 Programming ………………………………………………… 3 Troubleshooting……………………………………………..4
INTERFACE COMPONENTS · AXTC-BM1 interface · AXTC-BM1 harness · 3.5mm adapter
TOOLS & INSTALLATION ACCESSORIES REQUIRED · Crimping tool and connectors, or solder gun, solder, and heat shrink · Tape · Wire cutter · Zip ties
ATTENTION: With the key out of the ignition, disconnect the negative battery terminal before installing this product. Ensure that all installation connections are secure before cycling the ignition to test this product. NOTE: Refer to the instructions included with the aftermarket radio.
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© COPYRIGHT 2023 METRA ELECTRONICS CORPORATION
REV. 3/8/23 INSTAXTC-BM1
Reset Button
CONNECTIONS
LED
3.5mm Adapter (for vehicles without Steering wheel controls or aftermarket radios with a wire for SWC)
Boss (with SWC wire): Key 1 (Gray) – Brown Kenwood / JVC (with SWC wire): Blue/Yellow – Brown
XITE: SWC-2 – Brown
{ Universal Key-A or SWC-1 – Brown
Radio* Key-B or SWC-2 – Brown/White * After programming, assign SWC buttons within radio menu
Aftermarket Radio Front (radio’s features may vary)
Rear View
AUX-IN
Rear
Sub
SWC
3.5mm Adapter for Vehicles without Steering wheel controls 1) From the 3.5mm adapter, tie the Brown and Brown/White wires together with tape or connector 2) Connect the 3.5mm adapter to the 3.5mm jack from the AXTC-BM1 Harness 3) Program the AXTC-BM1 per the instructions on page 3. Disregard steps 4 & 5
To Battery
2
Vehicle Connector
Radio Connections
Gray – Front right speaker + Gray/Black – Front right speaker White – Front left speaker + White/Black – Front left speaker Green – Rear left speaker + Green/Black – Rear left speaker Purple – Rear right speaker + Purple/Black – Rear right speaker Blue/Pink – VSS/Speed-Sense Green/Purple – Reverse signal Light Green – Parking brake Blue – Not used Orange – Illumination Black – Ground Red – Accessory power Yellow – Battery power
PROGRAMMING
1.
Open the driver’s door, and keep open during the programming process. 6.
The LED will go out, then once again quickly flash Green & Red while
the interface programs itself to the vehicle. Once programmed, the LED
Green & Red LED will go out again, then turn solid Green.
OF F
START
2.
ACC ON
Cycle the ignition on.
Green LED
7.
ACC ON
Cycle the ignition off, then back on.
START
OF F
3.
Connect the AXTC-BM1 harness to the AXTC-BM1 interface, and then to
the wiring harness in the vehicle.
ACC ON
START
OF F
4.* Tap Volume Up Locate the Volume Up button on the the steering wheel. Program the
8.
VOL
interface by tapping the Volume Up button until the LED stops flashing.
+
*Only applicable if vehicle came with steering wheel controls
5.*
The LED will flash Green & Red while the interface programs the radio to
the steering wheel controls. Once programmed, the LED will go out, then
Green & Red LED produce a pattern which will identify the radio type installed. Refer to
the Radio LED Feedback section under Troubleshooting for radio types.
*Only applicable if vehicle came with steering wheel controls
Green or Red LED
Test all functions of the installation for proper operation.
REV. 3/8/23 INSTAXTC-BM1 3
AXTC-BM1
INSTALLATION INSTRUCTIONS
TROUBLESHOOTING
1.
LED
If the interface fails to function, press and release the reset button, then repeat the programming process from step 4 to try again.
Reset Button
2.
Final LED Feedback
At the end of programming the LED will turn Solid Green which indicates programming was successful. If the LED didn’t turn Solid Green, reference the list below to understand which programming section the problem may stem from.
LED Light
Solid Green Slow Red Flash Slow Green Flash
Solid Red
Radio Programming
Section Pass Fail Pass Fail
Vehicle Programming
Section Pass Pass Fail Fail
QR Code Scan Here
Further troubleshooting steps and information can be located at: axxessinterfaces.com/product/AXTC-BM1
Note: If the LED shows Solid Green for Pass (indicating everything programmed correctly), yet the steering wheel controls don’t work, make sure that the 3.5mm jack is plugged in, and plugged into the correct jack in the radio. Once corrected, press the reset button, then program again.
Having difficulties? We’re here to help. Contact our Tech Support line at:
386-257-1187
Or via email at: techsupport@metra-autosound.com
Tech Support Hours (Eastern Standard Time) Monday – Friday: 9:00 AM – 7:00 PM Saturday: 10:00 AM – 7:00 PM Sunday: 10:00 AM – 4:00 PM
® KNOWLEDGE IS POWER
Enhance your installation and fabrication skills by enrolling in the most recognized and respected mobile electronics school in our industry. Log onto www.installerinstitute.edu or call 386-672-5771 for more information and take steps toward a better tomorrow.
Metra recommends MECP certified technicians
AxxessInterfaces.com
© COPYRIGHT 2023 METRA ELECTRONICS CORPORATION
REV. 3/8/23 INSTAXTC-BM1
Documents / Resources
 |
AXXESS AXTC-BM1 Wiring Interface [pdf] Installation Guide AXTC-BM1 Wiring Interface, AXTC-BM1, Wiring Interface, Interface |