What are the differences between 65-66 and 67-73 Factory A/C

I found this post on this forum, and it has a picture showing the A/C lines low on the fire wall. Also states its a factory ac car.
http://www.forabodiesonly.com/mopar/showthread.php?t=246217

Also found another picture of an early a-body on the web that shows the A/C lines up by the hood torsion bars. Gold barracuda

What is correct for a 66?

I never did find any pictures of a valiant or barracuda that show the dash clearly, so I assumed it was like my 65 doge cornets A/C with 4 buttons.

A five push button control switch is at least still obtainable.
The red interior picture is taken from the web some where.
Last picture is of a 71 dart fire wall taken from the web some where.