What are these connectors (2003 WRX wiring)

[iblackwe]

Thanks for helping me solve that problem. I was wondering if you could help me with another!

This is a great connector that is right next to the OBD port/plug when I pulled it out of the car. I can't remember if it was plugged into anything, I honestly this it is just an extra plug. Do you know if I can remove it?
IMG_0259.jpgIMG_0260.jpg

I traced from that Grey plug to 3 other plugs that are confusing me because so some reason I didn't label them or they didn't have a connection. Here they are:
IMG_0253.jpgIMG_0254.jpgIMG_0255.jpgIMG_0256.jpgIMG_0257.jpgIMG_0258.jpg

The one white plug also had ABS connections from it. It also has connections (brown wire) running to the ECM. The White and Blue wires from the first grey plug I talked about above were traced to the one white plug from the pictures above^

Any insight would be much appreciated! thanks again