Hey, I have 1994 acura integra LS and I plan on replacing the O2 Sensor because it is the original and We messed it up. So I went to kregan autoparts and they have a bosch universal O2 Sensor....but theres no plug...I have the original plug on my old O2 sensor but the wires are different colors...how Would I know what wires are for what?

P.s. I cant afford a $270 honda OEM.