Wiring Harnesses - 68 vs 69

[roadster68 <roadster68@shaw.ca>]

Roadster not starting.  I remember reading something a while back about how 
these two differed.  My 68 has a  (6) fuse fusebox while the 69 has an (8) 
fuser.  I used a 69 as a base to  rebuild my 68 harness which was trashed. 
I followed the diagram as best as  I could.  The underdash main harness has 
the most wires.  What things are  critical that could affect starting the 
roadster?  Any difference in the  igntion switch area?  Larry.