Well today with Footemps help (mostly him working), we discovered that yes, the switch was wrong. It was meant to be in pins 1-2 or 2-3... instead of 1-3 (whoops). Anywho, the left channel now works. Now the issue is the right channel. So being my little solder happy self, I cut off the wires connecting to the pot, connected the line in wires to the line-in stereo jack as well as the line-out wires to the line-out stereo jack. So what I've noticed so far is that APPARENTLY... the right in/out (red wires) is the left channel, while the black is not receiving any sound at all.
Before I went on my pot wire cutting frenzy, I maxed out the pot, and a faint but clear sound was coming out of the right speaker, while the red amplified the sound.
So now I'm pretty dumbfounded as to why the right channel didn't work, even though me and Footemps checked for solder bridges, any steps I may have screwed up, and even reflowing all the solder...
Could this have to do with a burnt capacitor???... I'm not sure... Going to recheck the connections later on in the week. What I also did notice though, was the copper trace for the battery+ volts rose, so I'm not sure if that could play a role in no power for it. How did my sound get inverted in the first place...