Need Help ASAP- Starting Prob!

Hi,

Well, I finally finished installing my D16A6 in my hatch.
Connect battery terminals and went to start it.

All I got was a clicking sound coming from the starter and the starter cable was moving when i treid to start it.
So I attempted to tighten the starter cable a little tighter and went to start it again.
This time it didnt move the cable and didnt make as loud a clicking sound.

The problem is I cant get the starter cable tight, right now you can still wiggle it freely with your hand. When I try tightening it the whole cable spins with it making it imppossible to tighten.

Im almost 100% sure this is the problem. Because that stater cable has to be real tight and secure right to start the car?

Please help.
Thanks

I would thnk it would still crank good even if it wasnt real tight. Make sure all your grounds are connected, thats what it sounds like to me and its a common mistake after a swap.

alright, i double checked all 3 grounds and they are all on real tight.
I dont get how to unbolt the bottom bolt on the starter. I know I need an extension but what size exactly?
Thanks