Thanks @itsnitro and @masteryoer. I knew the hard drive wouldn't be the problem, but I was looking into the blu-ray player a while ago and it seemed like there were plenty of internal blocks to it (although I can't remember them now). I had thought I could use Kodi to play the movies from the Player, but that had it's own problems. I might start looking into it again.

@masteryoer yeeeeaahhhhh... I'm not much of a surgeon. I think I'll stick with cosmetics for now.

Copied from the Help and Support Thread:

Here are some images I took of my system. One day, I will clean up the wiring a bit, as it was one really organized and neat but during iterations of adding to it it's gotten sloppy again.

After wiring the LEDs and the fan up to a USB connector together, I now get the yellow lightning bolt in the upper right corner of my screen, as seen in the video. Not sure why, the power supply is putting out more than enough power. I may disconnect the fan from it, as it's technically a 12v fan that was originally wired directly up to the 12v system. I am not sure I'll ever need the fan anyway, just wanted it as a precaution.

This first image shows the guys of the system. You can see the PI, the usb hub and the original 12v power supply from the original xbox.

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This next image shows the custom connectors I made for the back. I cut out three holes for an RCA to RCA splicer, and hot glued an HDMI adapter, the RCA splicer, and a cat5 to cat5 connector to the back of the xbox chassis.

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This is the back of the system, with the main power on/off switch, and the hdmi, rca, and ethernet ports.

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This picture shows the front connectors. I took out the original ones, and replaced them with USB extension cables. They plug into a 4-port wired USB hub inside the system. (The hub is powered by the power supply). The eject button acts as a hard reset in the case of system freeze (Its connected to the 'Run' jumpers on the PI)

The power button acts as the power on/off to put the system in halt mode, or wake it up from halt mode (jumping pins 5 and 6).

The circle of light around the 'eject' button lights up a neon blue color.

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This is the finished product-ish. Still some tweaks to do, but it's for the most part there.

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And finally, a video of the boot sequence. I need to adjust some things so that it boots faster, as I don't like the 10-15 second black screen at the start, and the long wait between the boot sequence and the ES loading screen.

https://www.dropbox.com/s/b2d75bl8yy8q0nr/01e1e1e84bb62da7c29341b95d087012a42b0a5d2d.mp4?dl=0

I am also working on a custom theme, which I have a screenshot of here:

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ALSO: Please do not pay attention to the stuff all over the coffee table. That's currently my work-space, and glass is very hard to keep clean :\

@masteryoer with the pi3 updated you can even have the xbox boot video for your splashscreen. You can get rid of all the boot text as well. So it will look like you are booting an xbox. Plus you could put the audio sound from the xbox when you scroll through your games. You can also add the sound the xbox makes scrolling when you scroll through your games.