Yesterday I was replacing all of my dash lights and this morning I turned on the car and no sound. I checked all the fuses and the fuse in the back of the head unit and I now its not the speakers because the hu isn't even beeping when I press a button. The head unit comes on and everything. I checked all theconections on the back and still nothing. This is mind boggling because it worked yesterday before I installed the leds. Any suggestions? Is there a fuse inside the HU.