The Bard said:I really thought we could have got it back to normal by taking off the d0 wire. BTW I was talking as if it was an xecuter 2.6 you had installed, as I have done loads of them, so apologies if I was confusing you The X3 seems to have a few more wires.
What version of xbox have you got, 1.0, 1.1,... or 1.6 as they're all slightly different, particularly v1.6
I'll have another look around for you.
Check that everything is connected properly again in the mean time as it should boot back to standard the way you have it at the mo'.
Here's the X3 post-installation Help pdf
edit: a problem I had (a silly one) was to try to boot it up without it connected to the TV. It won't boot if the AV plug isn't connected into the back.