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• For Parrot radios: Follow the AX-SWC-PARROT (sold separately) instructions.
• For radios with a wire for SWC: Connect the 3.5mm adapter included with the
interface to the 3.5mm jack, then connect:
• Brown to the radio wire labeled: Key-A, SWC-1, or SWCIR
• Brown/White to the radio wire labeled: Key-B or SWC-2 (if applicable)
Note: After programming, assign SWC buttons in radio settings.
Note: XITE radios require SWC-2 to Brown.
• For all other radios: Connect the 3.5mm jack to the steering wheel control input.
• For vehicles without steering wheel controls: a) Tie the wires from the 3.5mm adapter included with the interface together.
b) Cut pin-5 from the 12-pin harness going into the interface. (Figure A)
1. Open the driver's door, and keep open during the programming process. Cycle the ignition on.
2. Connect the WM-GM29-SWC harness to the WM-GM29-SWC interface, and then to the wiring harness in the vehicle.
3. For models with steering wheel controls:
For (hold
) vehicles: Press and hold the Volume Up button on the steering wheel until the LED stops flashing.
1
For (tap
) vehicles: Tap the Volume Up button on the steering wheel until the LED stops flashing.
2
4. The LED will flash Green & Red while the interface learns the radio.Once learned the LED will go out, flash, then turn solid Green.
5. The LED will once again go out, then quickly flash Green & Red while the interface learns the vehicle. Once learned the LED will go
out, then turn solid Green. Cycle the ignition off/on, then test all functions for proper operation.
6. If the interface fails to function, press and release the reset button, then repeat the programming process from step 3.
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CONNECTIONS
(CONT)
PROGRAMMING
© COPYRIGHT 2020 METRA ELECTRONICS CORPORATION
Pin
5
X
CUT
(Figure A)
WM-GM29-SWC
I N S T A L L A T I O N I N S T R U C T I O N S
WM-GM29-SWC Layout
TO INTERFACE MODULE
VEHICLE CONNECTORS
RADIO CONNECTIONS
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)
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Saturday: 10:00 AM - 7:00 PM
Sunday: 10:00 AM - 4:00 PM
REV. 3/25/20 INST-WM-GM29-SWC
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