Ford use the same colour wires acroos their cars for feed, earth, perm live etc, even speaker postions, so any manual will be ok.
You should have three basic wires(apart from speakers), red, yellow, black(or brown).
Just put test light on one is permanent live(memory), one is switched live from ignition, one earth.
If you do not have a manual at all for any ford just set the volume low and try one set of speaker wires first to see which one it is, and wire accordingly to your stereo's respective output, (most likely be the same colour anyway).
The only thing you have to remember is to connect the stripes(speaker wires) all the same way does not matter which way(neg or pos) so long as they all push and pull together, DO NOT GROUND ANY, if your car has a JOYSTICK balancer/fader split wires as this will not work with most aftermarket stereos, due to grounding issues.
tabetha