I recently installed a new stereo in my '11 P7B, but it seems a previous owner really screwed with what I thought was "factory" wiring. The original harness had been cut and a new non-oem ford plug was terribly taped in place. There are some loose wires, which leads me to my questions:

1) does anyone have a wire color diagram for the plug? I have four loose wires that are not speakers, 12v switched, or 12v constant.

2) where can I pull a signal to let my system know it's in reverse?

3) where can I pull dimmer signal to dim my system with my instrument cluster?

Thanks a bunch!
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