Cluster board electrical help?

[67chevemall]

Hello
I'm trying to change over from a idiot cluster to a
gauge cluster.
I followed all the copper wire on the back of thecluster board,
and some look to be different.

1 2 3 4 5 6
If this is the plug in
7 8 9 10 11 12

then I have it as the gauge cluster board would be

1=7 from the idiot board
2=6 from the idiot board
3=4 " "
4=5
6=???? Battery gauge has no wire from old board
7=???? Temp gauge has no wire from old board(idiot)
8=8
9=9
10=1
11=11
12=??? Other Batt. has no wire I can think of

Any ideas to this mess?