Battery cables -where does the negative go?

Okay- thanks for all the help. Now how was the original negative cable attached to the battery tray?

I believe it was a thin plastic strip taped to the cable and it had an “tit” that snapped into the battery tray side hole or am I off base here? I installed to the top fwd intake manifold bolt but the cable hangs down too close to the fan and power steering pulley for my likes. - The negative cable I am using is a factory reproduction cable for this car. Not aftermarket. It seems to be the same length as a cable I removed from the car 20years ago. That cable still had factory tag on it but the battery end was messed up so I replaced it.
Joe
@FISHYPETE ? My photos of your car doesn't show. Pete has the most beautifully restored 66 Barracuda I have seen.