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Old 12-31-2021, 05:16 PM   #1
davew012
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Member#: 423130
Join Date: Jun 2015
Chapter/Region: NESIC
Location: Derry, NH
Vehicle:
2020 STI
Ice Silver

Default Help with 2020 STI steering wheel control wires

I recently installed an Alpine ILX-W650 head unit and want to retain the factory steering wheel audio controls. I have the Axxess ASWC-1 universal adapter and made the following connections: green/orange to pin 21 brown/black, green/black to pin 22 blue/yellow and then grounded pin 23 yellow. I also connected the ground and switched +12v to the ASWC-1. It goes through the programming and does indicate itís connected to an Alpine head unit but some controls are wrong. The volume- actual turns the volume up and volume up scans the presets on the radio. The center mute button turns the volume down. Has anyone tried this in a 2019 or 2020 WRX or STI?
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Old 01-01-2022, 10:05 PM   #2
davew012
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Ice Silver

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Iím ditching the ASWC-1 and going to try the idatalink maestro universal SW module. I already flashed it and will install tomorrow.
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Old 01-03-2022, 10:39 PM   #3
davew012
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Location: Derry, NH
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2020 STI
Ice Silver

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Quote:
Originally Posted by davew012 View Post
Iím ditching the ASWC-1 and going to try the idatalink maestro universal SW module. I already flashed it and will install tomorrow.


Just in case anyone else wants to do this on their 2019+ WRX/ STI the maestro universal steering wheel module worked perfectly. The software is easy to use and shows you exactly which wires need to be connected.
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Old 01-04-2022, 12:39 AM   #4
GoFrogs
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Member#: 507317
Join Date: Oct 2019
Chapter/Region: MAIC
Location: SW Ohio
Vehicle:
2019 WRX
Pure Red

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Quote:
Originally Posted by davew012 View Post
Just in case anyone else wants to do this on their 2019+ WRX/ STI the maestro universal steering wheel module worked perfectly. The software is easy to use and shows you exactly which wires need to be connected.

awesome, thanks for the heads up.
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