Did you check the fader, and bal.? Maybe there is a mute this is on, make sure it is all set up the way it should be. If that doesn't work, try pulling the deck out, then unhook the wiring from it, hook the wiring back up and try playing something before you put it back in. A wire may have been knock out, and causing all of this. If all that doesn't work make sure the speakers still work. I don't see anything that you installed that would cause any audio problems, but something did. I would help you today, but being mothers day and having to work is taking up most of my time. If you can tomorrow I will help you out if you can't get it to work. Most of the time, if a deck is bad, it will not even turn on, so I don't think that is what is going on.