Powering a Perfect 360 Joystick

[h1d3m3]

My current arcade has an old PC in it with a power supply. I was able to power the joysticks by taking advantage of the floppy power connections which use the same voltage (+5v). I am now building a Raspberry PI 2 version of the system but am not sure how to get power to the joysticks. I read that USBs have +5v pins, so would I be able to take power from a USB connection to run each joystick? I was also thinking I could use a 9v battery somehow as well, but I'm not sure how. If it can help somehow, there is also an Mini-PAC being used to handle the buttons and trackball.

I guess i'm looking for suggestions/options to get those joysticks powered up? (battery, USB, plan c?)

Thanks.

The Joystick : http://na.suzohapp.com/amusement_products/joysticks/50-0346-00

USB pin splitter : http://bit.ly/1akMq3m

Voltage Converter (possibly for use with a battery?) : http://bit.ly/1H4d7pU

[h1d3m3]

The answer is to simply connect the USB +5v wire and ground to the joystick +5v wire and ground. No other devices are needed.

Red to red, black to black : http://www.bealecorner.org/best/measure/USB/USB-cable-wiring.png

Sacrificed one USB cable and it worked like a charm.