1965 GMC 1500 dash switches

[retroman]

http://www.flickr.com/photos/hudsond...in/dateposted-

I'm getting my dad's old 1965 GMC 1500 back on the road, and have a question about how the dash controls were laid out from the factory:

What is supposed to occupy the hole to the right of the ignition switch?

The smaller hole to the right of the ignition switch may have been drilled for a speaker selection switch, but if it is original, what is supposed to go in that location?

Thanks in advance.