Air Fuel hook-up

I have a ProEFI installed on my 350z, along with MAP sensor and fuel pressure sensor. Now I also want to connect a signal wire from my existing AEM Wideband Air Fuel Gauge to provide an A/F signal to the ProEFI. Can anyone tell me which wire to tap into to provide this A/F signal and to which lead to connect it to on the ProEFI?

Thank you.
Randy aka Zmedic


P.S. I know its the 0-5V wire, but if you know the specific wire color that might help even more. AEM gauges are very popular, I'm sure someone knows.

Just in case anyone already has an AEM wideband installed and wants to tap into it to supply an air/fuel source to the ProEFI...Please simply tap into the white wire leading out from the actual bosch sensor.
Run that line to the EFI unit and your done.