Don't know why you guys knock some guy for having a job at Wally world, who cares! He is working and just leave it at that, geez!
I will say after reading your last post, if you went to school for electronics, then why not work and get paid in that field? Maybe hit up a local stereo shop or something. Might do better for yourself that way, but you make money and that is what matters. Some people just have to have more than others.
I say like the one guy said, start off small with like getting a nice deck and componets off a decent amp. Then build from there. Might take time, but will be well worth it in the end.
The stuff you have now works, that is good, but just isnt all that good to be honest. I would scrap the PA horns as they are absolutely annoying to most people. Just come here, listen to some of the guys here and we can offer you some good stuff for decent prices.
Good luck and have fun!