Simple Electrical connections

[analog_me]

Hi all,

I connected a USD charging cable to my master switch but i am not sure i did it right.
I do not have any electric tools/meters but did find some basic information in a web site.

I connected the back cable of my USB charger to the ground and the red to the Z connection terminal of the ignition switch via a 6A fuse.
Refer to photo of the below link
https://www.pegasusautoracing.com/document.asp?Doc...

Is this the correct terminal to use or is it the Z connection terminal to the ignition coil the one to use?.
Thank you