Right, just got a 7" in dash screen through the post from that tg in car site and it hasn't come with any instructions so I'm wondering if anyone can point me in the right direction here. It's the same kinda thing they've got at mp3playerstore. Now, the power socket has got 4 leads coming out of it: Red, Black, yellow and green. I'm guessing red and black are pos and neg and yellow might be ignition, but I've got no idea what the green one is for! Any ideas?