Yea youll se a line coming in and out of it that lead to the ACD Pump and the Reservoir under the hood in the front right hand side of the engine bay as you are looking at it

 

Maybe this can help you

 

So last night I went and traced the line that would connect to the ACD pump and it does in fact bajo into the center diff. It appears now I have 3 options
1. replace the center diff with 04 rs
2. Install ACD pump
3. Leave this to be someones issue and sell it before I sink clean Evo money into a salvage title car