CD Changer cable in Fabia vRS

Following possible activity in the Phatbox department (see THIS thread) I had a look for a CD changer cable underneath the passenger seat (standard changer fitment location??) but drew a blank :confused:

I was under the impression that the wiring was present, so if a there turns out to a compatible cable for the Phatbox, I can just connect it straight up?

Can anyone shed any light?

Steve