1997 Dodge Neon Need help with electrical problem

I was planning on getting a new radio so I decided to look at the back of my current stock radio to see what I needed. Right now I also have an aftermarket 6 disc CD changer which has its power spliced to the radio's power. When I looked behind my radio, the 2 wires came apart, so I tried to put them back together without thinking to unhook the battery terminal. Well, a spark occured and now my blower and dome light do not work at all. My radio works when the engine is on but if you open a door the radio dies, it resets each time it loses power, even if you just turn the car off. I just checked the fuses and my blower fuse was blown. I replaced it and tried out my blower only to have another fuse blow. I can't figure out what is wrong, there is also a wire with a built in fuse to it which I think it is for the radio or the cd changer, im not sure, I found it in the fuse pannel on the side of the dash. It is not connected to anything in the fuse pannel. I just can't seem to find the problem, I know its not the battery, not the altenator, I need some help.