Seiduna wrote:...and I mean cut the cord, I get two wires, put one on ground and other on 5V? ...
You are a dangerous guy Seiduna!
I did NOT suggest that you cut wires and hang your black-blob power supply on the GPIO. Why would you do that? What do you hope to achieve? It's a lose-lose strategy!
My suggestion is that you buy a cheap multimeter. You can then take voltage measurements while you swap black-blobs and cables, until you find a combination that gives a good 5V, and works. If none of them work, go out and buy the thickest USB cable you can find. If that still doesn't meet your power requirements, then buy a power supply like Nick's, which has been properly designed and built for the purpose.