A/F gauge hookup..

[Swifty1638]

I searched, but no results..atleast, not what I was looking for. I was looking through vfaq, and saw there was a different way to hook up a A/F gauge, then tapping off of the o2 wire. But, the link for that is not found. Anyone know how to do this, and if i must tap off of the 02, then how can I? Which wire is it?

-A. Swift

P.S.- I know it's not accurate. It's not my method of tuning, but when the chicks dig the light show, i tend to give them a fricken light show!