Steering Wheel Control

The steering wheel control works by sending different voltage to the radio player when you press a button on it.

This the the steering wheel adaptor that I've been using for the past few years with my pionneer head units. 

It's very easy to use. Just plug in the original swc wiring and then plug in the 3.5mm jack into the player. 

The new touchscreen player I bought didn't have this swc input jack. The input for the swc control was just a single wire on block 1 of the iso connector. 

So to make the steering wheel control stalk work, I had to connect the scw wire to the 3.5mm adaptor jack

I did this after testing the 3.5mm adaptor jack. The bottom ring is - ve/ground. The middle ring is +12v and the top ring is the scw input

After I got the wiring sorted out, it was time to program the new player with the inputs from the swc stalk. Do this according to the player you have.