Ever so close

[flouese]

I am finally at the stage where I am plugging in the electricals but have a potential problem.
The cats I removed from my 99, 2.5L had 2 O2 sensors, the replacement cats I installed have NO spots o put in the O2 sensors. I think I figured out the forward one by removing the plug on the manifold and putting one set of O2 sensors there, now what do I do with the aft ones?

This is the original cat I removed


This is the replacement cat which also came off a 99 2.5L

Any assistance will be greatly appreciated.