IIRC, the wiper motor may be a seperate harness usimng tjhe third firewall connector.
wait - Are you asking about 67 vs 69? Some terminal positions in the firewall connectors changed between 67 and 68.
The horn wiremay have moved too. No one has posted that up and I've not remembered to look at 68 to figure it out.
68 got side markers with lights.
69 may or may not have lights in the sidemarkers.