i am in desperate help. I have my car dash hanging out at the moment and all I need to know which is pin 12?

Currently adding the 'simple' mod of Coming Home/ Leaving Home lights however after taking so long to find the plug I have got the repair wire and plug in hand can't find bloody pin 12!!

Urgent help - So thanks for any help.

Feel fre fee to manipulate the photo and reupload it to circle which is pin 12.