As the title says, I've never been able to use my steering wheel controls for Spotify, even when I got one of those little bluetooth receivers. I've tried looking for answers, but I can never seem to find them
Right now, Spotify is not fully supported by your car, so the wheel controls won't work. You can find all the info about supported devices and models here.
If anything else comes up, don't hesitate to open a new thread.
Allt he best.