Does it Help?
I searched the forums for a couple of hours and the only post i saw relating to this was this one
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I have the SWI-PS and it works fine for me .... now.
The "key beep delete" (search for it) mod made a HUGE difference in button responsiveness. Now the steering wheel controls respond much like OEM.
A couple of notes after the mod, though:
Holding down Vol Up or Vol Down buttons still sometimes makes the volume "run". But this only happens when I hold the button down for a long tim