Maybe someone here can point me in the right direction. A few months ago my left front tweeter started working intermittently. Sometimes it would work just fine and sometimes there would be no sound at all (not even static or anything). Eventually it stopped working altogether, so I replaced it with a junkyard tweeter. That seemed to work for a couple of weeks but now I'm back at square one with no sound coming from that tweeter.

I have a feeling it's not the actual tweeter but something else causing the tweeter to die. I've already checked the connectors in the door and they look fine. It's only the front left tweeter that keeps dying. Any ideas? What would I check next? I'm not that good with electronics in cars.