I couldn't find the pinout Ford a Ford 2000 series radio anywhere on the net
either, so putting hit here for posterity in hope others can find it if
searching google groups. I ended up working it all out myself, but took
hours, even with my electronics experience as Ford are very strange with
their colour coding.

This is for a Ford 2005, taken from a 1991 Sierra Sapphire LX. I know its
the same for a Ford 2001 and 2007 radio too and no doubt many others.

Looking at back of radio. The left 7 pin socket is the power side.

Top pin is permanent 12 volts for keycode and channel memory, then:
No connection
12 volt feed from ignition switch radio position (yellow)
Feed for button illumination at night (feed from side lights) (Grey/Yellow)
No connection
Negative (Brown)
Bottom pin is for 12 volt feed to electric aerial (12 volts when radio
switched on) (Red/White)


The other connector (closest to side of radio) has 8 pins and is the
speakers.

Top pin
Left Rear + (Black/Yellow)
Left Rear - (Black/White)
Left Front + (Green/Yellow)
Left Front - (Green/White)
Rear Right + (Brown/Yellow)
Rear Right - (Brown/White)
Right Front + (Red/Yellow)
Right Front - (Red/White)
Bottom pin

The colours are for the wires going into the plugs from the car wiring loom.