Common sense tells us that the factory radio was working but no sound. 2 issues possible can cause this problem and both are related to the speakers. Trying 3 radios tells your power is okay on the truck to run your system. The only thimg left is bad speakers.. Test the speakers to makes sure they are working and test the wires that connect all your speakers to make sure none show ground on positive or negative wires. This would cause no sound in allRead more...