If somebody could please help..... I've got a Phat box from my previous A3 8L, but i now want to install into my S3 8L.... problem is that the S3 didn't have the cable installed so i've bought one off e bay, it's the cable with the blue block on the end but when i pull out the stereo i can't seem to see where it goes.... If i pull out one of the blocks that seems to run my Sub then their does look the perfect place for the blue cable to go, however i cant then plug the sub block back in. Even with the blue cable plugged in i still don't seem to have any life in my phat box..... by the way the head unit i have is the single cd font loader.... Any help is appreciated....Thanks !!