Radio Head Unit turns off suddenly for no reason

IllaNoizeTV

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2003 Mazdaspeed Protege
So randomly my head unit radio turns off and on when I drive. Sometimes it turns off when Im stopped and sometimes it doesnt even turn on when I start the car. I have tried to distinguish a pattern on it not working but I cant seem to pinpoint it. The power cable is connected well and all the wires are connected strongly too. All the fuses are working and not blown either, including the fuse connected to the battery. Im not sure what is it. I have a touchscreen Sony head unit a 1000watt Amp and two 12inch subwoofers. Can someone help please!?!?
 
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