After market head unit isn't turning on: 2003 Hyundai Tiburon?

[alan]

OK, so earlier before the head unit had problems i was wiring some neon in my trunk and on accident touched a negative to a positive and the trunk light immediately cut off. I didn't think much of it and continue to hook up an amp and subs that I had just bought perfectly. I went to turn my car back on after connecting the power wire back to the battery, the head unit didn't cut on at all! I checked the fuse on the head unit and all the fuses under the steering wheel and engine bay; all of them looked perfect. I thought maybe that my head unit had blew but I hooked up a different one and there wasn't any power to it either. I then found out my lights in the interior didn't work any more either and neither did my automatic locks. I have no clue what to do! I really don't think the subs or amp have anything to do with this, I think the problem occurred when the negative and positive touched, but i cannot find anything different from before. I even changed the head unit fuse out just in case. Please someone help me out. I have an after market wiring harness as well but the head unit was working fine before. If you guys could lead me to fixing this problem I wouldn't mind sending you some cash through paypal. I just really need to fix this. Having no music is a bummer.

[Robert R]

You just popped a fuse inside the car. Just look at your fuse panel diagram and look for the int. light or power locks fuse, if you can find it than pull each fuse out one at a time.