I have a 2013 mustang GT base stereo. I replaced the front door speakers with some aftermarket ones and added a sub. My issue is at low volume I can hear the driver side speaker cut off sometimes. If I turn up the volume it comes on. It has never done it with the factory speakers installed. I tried swapping the speakers from driver to passenger and it is always the driver side that cuts out. I checked all the wiring and used the metra speaker adapters for the connections. The polarity has been swapped on the speaker adapters since they are wired backwards on the 2013 harnesses. Impedance is 4 ohms on the aftermarket speakers. The speed compensated volume is set to off FYI in case anyone thinks it may be that. Anyone else expierience this problem? Its literally driving me nuts. Help please!

 

Still having the same issue. Seems like it is a loose wire. I pulled the radio and door panel and shook the wires with it on and can't duplicate the problem. I tried several different speakers ( all 4 ohm). Problem disappears when I put the factory speaker back in. Never had a factory amp cut out when I switched from 8 to 4 ohms. Again it's only the left driver door speaker. Maybe bad ground? I've been doing car audio for over 15 years and never came across a problem I couldn't resolve. This is my first ford but I can't see how it would differ from a gm

 

Correction the factory speakers are 4 ohm as well. Makes it even more puzzling

 

What make/model are the speakers you're replacing the factory ones with?

Does this happen every time with all speakers EXCEPT the factory ones? If so, sounds like some form of either bad adapter (unlikely) or impedance mismatch (most likely). Remember, the factory crap is exactly that - crap. I will research in the AM and see what's up. Please post make/model of speakers you're replacing the factory ones with.

 

Yes any aftermarket speaker I have tried. (3 different kinds infinity pioneer 6.5s and a set of pioneer 6x8s all do it. I have the metra adapters so there are no cut wires. I also teversed polarity on them because the metra harnesses are backwards (on 2013s) when hooked up. I had them for two weeks backwards and it did the same. I tried swapping the left to the right seeing if the right side would start doing it. Always the driver left left side. I'm gonna try grounding the left speaker directly to chassis and see if that helps. I cannot duplicate the problem when not in motion.

 

I just started experiencing this in the past week as well. I replaced my factory fronts with some Alpines using the Metra harness, and they were sounding great (Shaker 500 system). Like the OP said it seems like a short somewhere.

Wondering if anyone else has run into this, or if the OP resolved the issue and how. Thanks.

 

I ended up squeezing the spade connections (the part that slides on to the speaker)on the metra harness tighter and it fixed it. It was making contact but the signal wouldn't go through. Haven't had any issues since.

 

Thanks! This was driving me nuts.