To be honest, this is not a practical Instructable about how to do something useful. Unless you have exactly the stuff I had, you won't be able to replicate what I built.
It is, however, a lengthy description of how I used information from other Instructables and a lot of help from the Answers section to teach myself some basic electronics and build something that works.
Note that this is Stage 1, and ends with all the power connections made. Stage 2 will be the audio connections, and Stage 3 will be building the enclosure to contain this beast.
I stood on the shoulders of giants for this one. Please read these great Instructables:
I also want to thank those who helped out in the Answers section:
If you're interested in process over product, read on!