2014 ford taurus sho with sony dsp

Im trying to find the wire diagram for the sony amp/dsp. My direct tech account only gives me the post amp speaker wires. I need thr pre amp signal before the amp. On the amp there is 3 connectors one black and two grey. Which would tell me the Grey ones are post amp since they are more wires going out. The black only has I think 8 or 10 wires. I need to know which are the front on the black connectors. A wiring diagram for the Sony DSP in the 2014 Ford Taurus SHO would be great.

To clarify: I need the pre- amp signals from the front. post amp the signal would already be equalized. I see there is 3 connectors, a black and 2 grey. the black which has the least amount of wires is probably the pre amp connector, but need to know which wires are the full range signal? thanks

Which of these wires is the full range prior to equalization by the Sony DSP? https://i562.photobucket.com/albums/ss63/customaudioman/Mobile%20Uploads/20131217_162156_zpse5da031b.jpg https://i562.photobucket.com/albums/ss63/customaudioman/Mobile%20Uploads/20131217_162338_zps1cd3fcb6.jpg