a/f gauge signal wire?

[TRMotorsports]

hey guys i have a auto-meter a/f gauge sitting in my car not hooked up cause i'm not sure wich wire to hook it to on the o2 sensor i have 2 white wires, 1 black, 1 gray i was thinking the gray one but not sure. thanks guys

 

[EvuLFleA]

White with black stripe. Top wire bundle going to your ECU.

 

[shuwa29]

oh look, it's that guy with the street fighter front. hmm
later

 

[EvuLFleA]

Damn ricers with street fighter fronts.