I found a nice metal case to house a Raspberry Pi for a project. It has near-perfect dimensions and properties, but it lacks space to attach a power supply via Micro USB. I think the main USB ports are too close to the walls as well. Red and black wires on the GPIO you see in the picture are going to a LED.
Without attaching (any) USB plug, is there any other way to supply wired power? How would I do it?
I might be willing to solder on some cables.