Re: Front speakers wont work
Maybe the stock HU sent a signal to a amp, then the amp sent a signal to the speakers.
And now the new HU, you either didnt hook it up to send a signal to the amp, or its sending the wrong kind of signal?
I would maybe get to the speaker wires behind the HU, and use a AA battery on the pos and neg wire, see if it will make the speaker pop.
Re: Front speakers wont work
likely you did not hook up the remote turn-on output from the head unit to the factory amp turn-on wire.