67 Dart Heat A/C cable

I just put my 65 back together. I don't see how it could go anywhere but on top. The slide control on the dash is higher than the top of the heater box and the attachment point on the heater box is on the top. Seems like you'd be going out of your way to drop down between them.

Maybe later years are different, but I bought a 1970 heater box at the junk yard is it's the same size and shape as the 65.