Hi, I bought a Valor NVG-606w GPS/head unit. All is working fine, except the harness I bought does not have any wiring for the wheel controls. The Valor supposedly supports this feature. It has an IR/in wire (for steering wheel control interface... per the documentation) and Wheel key wire (which I am not sure what it's for, only shows a picture of a steering wheel)... How can I connect this? Are there Wires I can splice into?
Do I need both? Will it wire directly, or will I need some sort of "PAC" type convertor?

Thanks in Advance

Phil