Hi there I have a 2007 exl with nav and I replaced all 4 door speakers with plug in harness about a week ago. Install was no problem and sounded alot better. I did not drive the pilot for about a week and get in it today only to find no sound coming from the speakers only the subwoofer and a pop sound when I first turn the key on. I pulled out all the speakers out and found no issues with them or the connections. What could the problem be?