I have a 95 Prelude and I'm trying to install my A/F gauge and I'm a little confused as to which wire I have to splice into. I ran the o2 harness down and I don't know which wire it is. I assumed it was the white-black dashed wire but it doesn't work. Any suggestions?

 

Its the wire with the shielding on it, but just an fyi that guage wont tell you **** as the stock o2 sensor wont read anything accurately enough.