Today I decided to find out why my left front speaker was not working.
First thing I did was swap the radio since it is still stock at the moment, and I had another just like it. There was no change, L/F still not working.
Next was pulling off the door panel to do a visual inspection, the speaker was there, and it was plugged in.
After swapping the L/F speaker with a spare I had in the garage, it still did not work. This meant it was a wiring problem.
I did a continuity test on both circuits from the radio to the speaker connection, and one was open (orange with green stripe).
Next I separated the door to vehicle connector and checked the wires in the door and they were both good with about .3 ohms.
The two speaker wires go from the back of the radio to a connector under the dash by the parking brake, I found the orange with green stripe and it was good from the radio to the connector under the dash. This left only one part of the circuit that goes from under the dash to the door jam.
Inside the rubber piece that all the wires go through, in the door jam, I found the broken wire.
This can be a tricky place to fix a wire but there is a method that has worked for me a few times.
You pull the rubber piece off the body of the vehicle and pull the wire out of the back of that piece and add a length of wire to it, then feed it back in there and solder it to what's left of the wire at the connector.
I used an old transmission dipstick for a wire "fish" tool. It worked better than the metal coat hangers I have cut up and used in the past.
I shoved it through the rubber piece, slid the wire through the rounded end and pulled it back out the side closest to the connector.
A little solder and heat shrink to keep it sealed and it is good to go.
I shoved the excess wire back into the rubber piece, pulled the rubber piece back onto the connector, and installed a new zip tie on it.
I am happy to say that all my speakers work now, I will upgrade the sound system at a later date.