I'm trying to recall...
I replaced all the wireing at the coil pack area cause it was all old and cracking. Those plastic terminals are gone on mine and I'll hve to look a my FSM wiring to tell you how to do what I did.
I think there are 2 wires into the rectagular one,,correct?
If you can just cut at the filter and solder those 2 together. It's not alot of wire to work with and hard to even wrap tape around so paint it with liquid wire after you solder. Its a W-L colored wire from the plug to the tac as I recall, but wires are different going in and coming out of that plug. I drew up a diagram of the wiring plan I wanted to do before I went to cutting. I still have that in a pile of papers at home. (I have to go out for wireless)