I have that exact JDM steering wheel with the steering wheels buttons, connected up all the wires and it doesn't work, I don't think it's wired up to the head unit.
I also have this lying around. After dismantling an SVX I realised that just the little POWER button can be screwed off the shifter and can slide out and be put on another shifter without having to change your WHOLE shifter.... just the little switch... for those who don't know.
