I do not have the Active Noise Cancellation in my car so I do not have the Audio Signal Processor. You are right that to tie in back the if you do have it. The one thing to keep in mind to tie in after the processor not before. Amplified signals can fry the Audio Signal Processor. With that said, your Active Noise Cancellation will not really be working because the JL Audio Clean Sweep will eliminate that part of the signal before it makes it to the amps and speakers. Without having Active Noise Cancellation the best place to tie in is right behind the dash. Attached are files with step by step Dash, Front, and Rear Door removal. Also attached is a simple wiring diagram. I cant attach much more than that because it is 44 pages and would require a good deal of ford knowledge to read. The diagram is a great reference for which color wires go where. When you pull out the cd player (Front Audio Control Module) The cable that is plugged in on the drivers side is the one that contains all the speaker wires. If you splice for signal in and out about 3" down from the connector then you will have plenty of room to reconnect if you ever remove like I just did. Everything is back in like new now with no issues. All of my stuff is for sale if anyone has any interest feel free to let me know. Hope the diagrams help and let me know if I can be anymore help. I wouldn't have the Fusion much longer (trading in for Explorer Sport), but I will remain on here for assistance. Good Luck.
Fusion Dash Removal.pdf
Fusion Dash Removal.pdf
Fusion Front Door Removal.pdf
Audio Cable Diagram.pdf