I have a quick question, bought GZ yellow basket speakers & was wondering what size terminals are these? My electrical connectors i have don't seem to fit the smaller one. The bigger one seems to be 1/4"

 

if the electrical connector isnt the perfect size, you could try soldering them together after sliding it on to make sure you get a solid connection. thats what i did on a couple of my connections.

 

Harbor freight terminal kit, change it one that fits.

 

O'Reilly's, Auto Zone, etc carry the narrow female spade terminals in gold plated. There's 3 different sizes. I keep all 3 in my electrical terminal stash.