Stereo Pin configuratonpl

[reinstate]

please does any one know how the rear input/output plugs on the nissan car stereo csk-9511d pins are configured (what pin does what)?

it came out of a nissan lucino and was made in japan by xanavi informatics corparation

it has an aerial connector, a din plug, and two bigger plugs for spk etc

i need to know about the two bigger plugs.

they are both oblongs, one of them has 4 pins and the other 9

please help asap!