Works, but not without problems
2011 Subaru Outback
I installed the Axxess Steering Wheel Control Interface (ASWC-1) with my new Kenwood DNX893S. The ASWC-1 allows me to use the factory radio control buttons on my steering wheel with new HU. The ASWC-1 has "auto-detect" that senses the steering wheel buttons and syncs them to the HU. It auto-detected my volume and channel up/down buttons and Mode button (toggles from radio, to SiriusXM, to Nav, etc.). My phone on-hook/off-hook buttons and Talk button (used with Bluetooth) did not auto-sync. A manual programming option exists, which I will try with these buttons. The ASWC-1 is "forgetting" its auto-detect settings from one car start to the next; the buttons work, then don't the next time the car is started. I must access the ASWC-1 inside the dash (remove trim bezel) and press its reset button to force a new auto-detect. Axxess tech support advised to ensure the ASWC-1 is directly grounded to the car chassis to eliminate changes in resistance from one car start to the next. I have it grounded with the HU, so I will separate the grounds and hope this corrects the problem. There is also a new firmware release. I will use the firmware updater utility from their website for this.
Pros: Allows me to use some of my factory steering wheel radio control buttons with my aftermarket head unit.
Cons: Not all steering wheel buttons auto-detected. Some problems with unit "forgetting" its auto-detect settings, which necessitated multiple manual resets. (May be due to incorrect grounding on my part. I will continue to troubleshoot. See "review" section for more details.)