Not sure if this is the right place for this , today i took out my delco factory deck i do not have the model number right now but my car is equipped with a 12 disc cd changer and has a tape deck up front with the equalizer i was trying to install a sub woofer and an amp but as soon as i was done i went to turn on my car my radio my a/c and my center boost consul wont turn on all my buttons are illuminated but the screens are not lit at all even my tcs light still works when i push the button but that's it i checked the radio fuse and it was blown i replaced it i checked a few others but they all were ok im not sure what ive done here maybe i loosened a ground wire or something i dont know what should i do ?