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Hi, my name is***** is also a fuse located in the back of the radio. Make sure that fuse is good. Also replace fuse #1 and #12 in the fuse box. Even if the fuses look good they can still be making a poor connection. If all fuses are good and if the wires from the radio to the speakers are connected your problem is either a bad radio or two bad speakers.
Let me know what you find out.