quick disconnect for subwoofer amp

This may be a very stupid question but I am going to ask it anyway as I need to make sure that I do this correctly. After reading a thread I purchased 2 of these 4 AWG Breakaway Power Connector 175A (shown in the link above). I have never had quick disconnects but I would like to incorporate this into my vehicle. Once I install these my question is do I need to remove the ground cable from the battery everytime I want to disconnect them from the box or reconnect them when I put the box back in the vehicle (it is a box with a built in amplifier) or can I just go to the trunk and pull these apart and hook them back up everytime without any other adjustments or issues. I greatly appreciate your insight.

You just pull the 2 halves apart and plug them back in to each other. Leave the connections under the hood alone, that what a quick disconnect is for.

Use a screw driver or needle nose pliers to depress the metal plate and the lug will fall out to the back.

Using a torch, solder 3/4" of clean bare wire you havent touched in to that lug and whack the very end with a hammer to ensure the cable still can't be pulled out.

Re insert the lug in to the QD body facing the correct orientation and when you've done both leads bind them together at the QD with black tape.

You need to really take heed that you mate the + symbol side with the pwr wire and the - symbol with the ground on both of the QD.