dash rattles ?

I notice a few rattles while I am driving. I think one might be the speedometer cable because I tend to here it while moving within a certain range. If it is...any suggestions on how to fix that particular squeak.

Since I will be crawling under there to install a new stereo, I would like to tight anything else up that might be loose so....give me any things you guys have run across before that I might check. I realize it's a 40 year old car and hard to get it totally rattle free but no harm in trying....