The most common reason for no sound is speakers or speaker wires are grounded or shorted to a metal point.
Test to be sure no speaker wiring is connected to a chassis ground and there are no speaker wires shorted to metal. Speaker wiring cannot be shared or bridged. Each speaker needs it’s own positive and negative from the radio. No two speaker outputs can be tied together.
If your car has a common grounding speaker system (the speakers in the vehicle use a chassis ground or a common grounding point for the negative side of the speakers) you will need to run new wiring to your speakers.