Thanks I will try that later, After a little more playing around last night I discovered its not just my aftermarket headunit but the standard one doesn't work either /: A little more about the fault.. When I turn the key with my aftermarket headunit fitted it powers up in sequence with the dash warning lights and then goes out with them, but if I press te display button te backlight comes on but still not functioning as a headunit should ? The fuses and relays are fine, and with a tester I tested all the wires at there block ends and only one has a live to it and from what I can gather that's the constant live. Even wheni turn the key there is not an ignition live ? Hope this helps some more