wiring in led lights and usb

[SLYS FARM]

I just want to wire in a couple of led lights and a USB / cigarette lighter combo onto my 1986 club car. They can be wired into the ignition switch or on a separate circuit altogether. The lights will be connected to a toggle switch. I disconnected the oil light and reverse beep so I was wondering if I could use those available connections at the ignition switch? I was hoping someone could help me find a simple wiring diagram explaining how to do this. I know I need to add a fuse. I do not want to get to complicated and mess with the main wiring harness. I just want to run my own wires to the battery. I know this is a simple 12v system I just need a better understanding of how this works. hopefully, step by step instructions. Thanks!