Thanks SpyderMike, that was really helpful!!
Some more questions...
Now I just need to figure the last three out (red, black and black). If I look at the connection they all look like the go in to the fuse terminal.
And when I look at the fuse terminal I have one connection where two black wires been cutted (marked red), mayby thats where the two blacks from the engine harness should end up. Then I also have all the ones marked with orange that are cut. I have some work to do...
The one that I marked, thats for the speed? I dont have anything to connect it to so I need to see if its hidden in the tunnel somewhere...
So the yellow from the ignition, and black/violet with black coming from the tachometer, I guess I can connect the yellow somewhere in the fusebox that gets power from the ignition? Then I just have to figure out what cabel goes to the tachometer before I know where to connect the black and black/violet
It is a mess behind the dashboard right now...