2003 Mustang GT Premium (mach audio)-

Recently, my passenger side speaker started crackling/popping, so I replaced the speaker with a new pioneer speaker. I know little to nothing about electronics, but after I replaced the speaker myself, it doesn't seem to pop as much anymore but it does crackle really badly especially when any type of bass is played through it. I assume the old speaker may have been bad but there's some other issue still. One thing I noticed is that whenever I have music playing and I hit bumps, the speaker crackles almost every time. I turned down the bass almost all the way, so it doesn't crackle as much but I can tell that hitting bumps definitely causes crackling in addition to it already doing it with the bass lowered. I pulled the door panel off and I can't seem to find any exposed wire, and I also pulled the boot back that covers the wire that moves through the door to under the passenger dash. The tape was worn but the hard tube that covers the wires was still intact. I checked these wires as far as they can go, and I can't see any visual issues. I also pulled my pioneer head unit and switched the left and right connections- the passenger door speaker still was the issue. I have had an issue where the head unit will randomly stop charging my phone unless I restart the car. My alternator and battery terminal connections are all brand new as of last month.

I've tried to be as detailed as possible to save troubleshooting. I'd really appreciate the help, as I miss listening to music with bass above half volume.

 

you have a short in your wire. That's why it crackles when you hit bumps. You can try to run a new wire by using the old wire as a travel guide. I assume you know what I mean. tape the new wire to the old wire and as you yank the old wire out your new wire is now in its place.