How can I replace my optical drive on my 360?

Original Xbox 360 from 2005

My xbox 360 will no longer read ANY Discs. I mean nothing. The disc tray works fine, but when I insert a: Game, DVD, DVDR(with music on it) it starts to read makes a noise then says "Open Tray" sometimes it works if I shake the console while it is attempting to start up a disc, but I no longer want to do this because I obviously run the risk of flat out damaging both the Xbox and the disc.

In Conclusion

How (If possible) can I replace the whole optical drive so that it can read discs again.

Please help!