6000CD aux in - car plug

[shtig2000]

hi,
got 2007 Ford focus with 6000CD in dash radio.
AUX input is not connected at this model.
looked at the car plugs behind the gloves compartment.
too many wires to guess from.
does anyone know which is the right plug & the pin numbers ?
(there are one large light blue plug & a smaller gray one)
Please help.
thanks.