[350z 6spd]

I have the f900bt and pac swi-ps in my nismo which did not have bose. On my non-bose there was a brown connector coming out of the back of the stock stereo that was for the steering wheel controls (the one in the illustration you provided). You have to use the wires from that connector for it to work. In other words use the connector or its wires at least lol.